How to Multiply and Divide Fractions

In order to divide mixed numbers, you should change the mixed numbers into improper fractions. With the problem 5 ¼ divided by 2 3/8, you should convert both mixed fractions to improper fractions. 5 ¼ becomes 21/4, when you multiply 4 times 5 and add one. 2 3/8 becomes 19/8, ...more

You can do simple decimal calculation with out using a calculator once you understand the basic concept of decimals. In decimal equations when you have various operations between decimal numbers, you have to go by the order of operations in simplifying it. The order of operati ...more

Step 1: Convert the mixed numbers to improper fractions. ex: convert 1 1/2 * 2 1/3 to 3/2 * 7/3 Step 2: Multiply the fractions. So we will multiply 3/2 * 7 /3 =21/ 6 Step 3: Reduce Reduce the number 21/6. For this we divide 21 by 6. It will not be divided completely; rema ...more

Looking for a primer on how to divide mixed numbers in basic arithmetic? See how it's done with this free video math lesson. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, th ...more

Watch this video to learn how to convert improper fractions to mixed numbers. For example, follow these steps. First step is one fraction value. For example 7/3. Second step is divide the numerator by denominator means when 7 divide 3 you can get remainder as 1. Means 7 before ...more

In this video the instructor shows how to divide rational expressions. To divide rational expressions follow this simple four step approach. In the fist step change the division to multiplication by flipping the second fraction. Now the original division simplifies to multipli ...more

Solving math inequalities with fractions is easy when applying the rules presented in this video. • When you add or subtract the same number from each side of an inequality, the relationship between the two sides does not change. • When you multiply or divide each side of an ...more

In order to simplify complex rational expressions, it is important to be able to find the lowest common denominator. Complex rational expressions are fractions that are divided by fractions. When you have found the lowest common denominator, then, you should multiply both frac ...more

Solving linear equations in algebra is done with multiplication, division, or reciprocals. Using reciprocals, or multiplicative inverse, as well as multiplying and dividing with certain formulas, you can solve linear equation word problems. Could you use a little help figuring ...more

Learn how to use the FOIL method to distribute two binomial expressions in algebra. The FOIL method — which stands for first, outer, inner, and last — takes two binomials and multiplies them for a single quadratic equation. Solving for binomials with FOIL takes just a few step ...more

To solve a proportion for a variable you should employ cross multiplication. The basis of cross multiplication is the property which states that the product of the numerator of one fraction and the denominator of what it is set equal to is equal to the product of the remaining ...more

In this video the instructor shows how to use proportions to solve fractions. When you have a proportions problem with an unknown term, cross multiply and divide it to get the value of that unknown term. For example if given 7/8 = m/4, cross multiply 7/8 with 4, giving 7/2 whi ...more

To add two fractions we need to add the numerator and denominator. For example: 1/4+ 3/8=5/8. 3 is known as the numerator and 8 is called the denominator. Before adding fractions, first of all we need to take the LCM of the denominator and then divide the denominator with the ...more

In this video the instructor shows how to divide rational expressions that contain trinomials. A division containing two fractions can always be turned into a multiplication by multiplying the first fraction by the reciprocal of the second fraction. This way any division can b ...more

In this video, we learn how to understand and determine equivalent fractions. If you have an equation with an equivalent fraction, you will first multiply the first numerator by the second denominator. Then, you will divide this answer by the denominator of the first fraction. ...more

In this tutorial the instructor shows how to solve ratios and proportions. He gives a two step approach to solve an equality of two fractions in which the value of a variable in unknown. He says that in the first step we should cross multiply the numbers across the diagonal. I ...more

In order to add mixed number in fractions, in a math problem, you will need to focus on the denominator. The denominator is the lower number in the fraction. The top number is called the numerator. When you look at the denominator, you should try to figure out if the denomina ...more

Fractions are numbers written in the form a/b, where a, b are integers. Fractions can also be expressed in the form of percents by multiplying the value of the fraction with hundred. So we can always change percents to fractions and also fractions to percents. Remember that pe ...more

This video teaches you how to convert fraction to decimals in three easy steps. The process of decimal to fraction conversion involves the use of the fundamental rule of fractions; the fraction should be written in its lowest terms. Write down the decimal divided by 1. Multip ...more

This video is a simple math video showing how to add and subtract fractions using different denominators. It begins with a man explaining briefly and sitting in front of a piece of paper. He writes out a group of fractions each one with different denominators, ending in three ...more

In this video you can learn how to simplify complex fractions. Look at the example in the illustration. To simplify this complex problem, you would first add the number 1 under the whole number in the denominator, to make it a fraction. Then change it from a division problem b ...more

Don't be scared of fractions! Adding and subtracting fractions is not that hard once you understand how to do it. Once you know the trick to adding and subtracting fractions with different denominators, you'll have no problem with these problems. Step 1: Add fractions with s ...more

Everyone has used a ruler at some point in their life, whether for art sizing, blueprint plans, or sizing up your widescreen television on your living room wall. But there's a lot of little ticks on the ruler that you may not be aware of. Your ruler shouldn’t be used only to d ...more

In this video, learn how to convert the American pound (lb.), a United States customary unit of mass, into kilograms (kg), a metric unit of mass in the International System of Units (SI). First, the equation for converting weight from pounds (lbs.) to kilograms is 1 pound div ...more

From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps. With this installment from Internet pedagogical sup ...more

From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps. With this installment from Internet pedagogical sup ...more

Rational numbers are numbers that can be expressed in the form of a/b, where a, b are integers and b is not equal to zero. Rational numbers are also called as fractions. Multiplication of fractions is very simple and straight forward. Two multiply two fractions a/b, c/d first ...more

Look for a vertical or horizontal relationship in the given equation. In the horizontal or vertical side of the equation where both numerator and denominators are given, look for a multiplier to the smaller number so that the product is equal to the bigger number. Use this mul ...more

This video revolves around solving rational equations in Algebra 2. When you are given a rational equation, you have to find the greatest common factor and multiply all fractions to get that common factor. If a fraction already has that common factor, then no further step is n ...more

This is an illustrative video on how to rationalize a denominator. Let us take an example of 1 over root 2. If we have to rationalize this denominator, we need to multiply it and divide it by root 2. You will get root 2 over 2. Similarly if you want to rationalize 4 root 6 ove ...more

In this tutorial, we learn how to divide fractions into decimals. First, you will want to divide your numerator by your denominator. If you can simplify this number further, it will make it easier for you to divide. You can do this on the calculator, or you can do it by hand. ...more

In algebra, you can solve a quadratic equation by applying the square root rule. With a squared term and a constant, the special quadratic equation is easily solved. Could you use a little help figuring out how to divide fractions? Watch this free video lesson. From Ramanujan ...more

So, you've started playing golf, and you've started getting competitive... Figure out a golf handicap with help from this free video from expert golf site, Golf Link. A golfer's handicap is determined by two factors, which are the course rating and the slope of the golf course ...more

Take a look at this instructional video and learn how to use simple formulas in Microsoft Office Excel 2007 to add, subtract, multiply, and divide. For example, you can use a prewritten formula called the SUM function to find totals, such as your total monthly expenses. Excel ...more

This video walks you through the steps of multiply and divide rational expressions. This excellent video shows you a clean board, with the instructors voice showing exactly what to do. Don't fret, any question you may have, will be answered. Watching this video will make you f ...more

In this video the instructor shows how to multiply and divide integers. When multiplying or dividing two numbers if the signs of the two numbers are same then the sign of the result is a positive number. When multiplying or dividing two numbers if the signs of the two numbers ...more

Mathematical expressions containing binomials create double the pleasure for math geeks because they get twice as much expressions to solve. Ensure your mathematical journey never ends by watching this video on how to multiply and divide rational expressions. A series that's ...more

In this Education video tutorial you will learn how to simplify an exponential expression in algebra. There are neither audio nor typed instructions in this video. It is a demonstration of the steps involved in the process. To do this, simply expand the exponentials and then m ...more

Convert percents to decimals: To convert percents to decimal involves simple three steps. For example to converting 125% the following steps are: Divide 125 by 100, we get the fractions like 1 25/100, then divide both the numerator and denominator of fractional part by 25. T ...more

In this video, you can learn how to do algebraic long division. Take an easy example, such as 88 divided by 4. You are actually dividing 4 into 88. You take the 4 and divide it into the 80, and your answer is 20. Multiply (20 x 4) and you get 80, then subtract the 80 from 88 a ...more

This video teaches you to subtract mixed numbers with borrowing. Consider 2 mixed numbers. For example 8 and 2/7 and the other 5 and 4/5.You have to subtract 5 and 4/5 from 8 and 2/7. First you have to convert the fractions to their common denominator. To equate the denominato ...more

In this video, the instructor shows how to find the order of operations with fractions and decimals. If you have an equation with both fractions and decimals, you can convert the decimals to fractions, or fractions to decimals to have the entire equation in either decimals or ...more

The author in this video explains the concept of fundamental rule of proportions. Fundamental rule of proportions means cross multiply. He explains that to arrive from an equation which has fractions into the one without equation multiply the top of left side with the bottom o ...more

Would you like to know how to divide mixed numbers (numbers containing fractions) into one another in basic arithmetic? It's easy. Learn how with this free video math lesson. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathem ...more

The area of a polygon is the number of square units inside that polygon. Area is 2-dimensional like a carpet or an area rug. A triangle is a three-sided polygon. We will look at several types of triangles in this lesson. To find the area of a triangle, multiply the base by the ...more

In this video tutorial the instructor shows how to solve a single-step equation by taking the reciprocal. He says that in the equations of fractions containing a variable on the one side, you multiply the reciprocal of its numerical constant to it so that only the variable x s ...more

In this video we learn how to multiply mixed numbers together. First, take your mixed numbers and write them into an equation. Next, convert the numbers both to top heavy fractions. Now, multiply the top numerators together and then the denominators together. If you can't work ...more

In order to subtract mixed fractions, you'll need to look at the denominators carefully. If the denominators do not match, you'll need to find a common denominator. For example, 5 2/3 minus 3 4/5 do not have the same denominator. The lowest common denominator for them is 15. ...more

If you want to know how to calculate percent error easily, you should watch this video. Error is the amount of deviation from accurate values. Error calculation is not possible, unless you make a quantitative measurement of the various quantities involved in your experiment. M ...more

In this tutorial the tutor shows how to work around with discounts. He shows how to find out the price of an item after discount is applied to it. He says that this is a regular situation faced by us when we visit shopping malls etc., Now he says that we need to multiply the o ...more

Wondering how to add fractions with uncommon denominators? It is simple to solve the denominators there are three steps to find the uncommon denominators. first step is to find the lowest common denominator and you take 3/4 + 5/6. In this lowest common denominator is 12, then ...more

In this video the instructor shows how to solve rational equations. If you have fractions in your equation, then you need to factorize the denominators first. Now compute the least common denominator of all the denominators of the fraction. Next multiply both sides of the equa ...more

Decimals are just as complicated as fractions, but they are written a bit simpler. In this video, learn how to divide a decimal number by another decimal number without a calculator. Follow the step by step presented in this tutorial and practice this method and it won't take ...more

A guy from the website Math Problem Generator explains, in this video, how to easily multiply mixed fraction numbers. First, he demonstrates that you need to convert both of the numbers to improper fractions. Then he shows that you need to multiply the two resulting numbers to ...more

In chemistry you come across problems which ask you to find the percent by mass and percent composition of each element in a chemical compound. To do this the first step is to compute the molar mass. Use the periodic table to look up the mass of individual atoms and multiply i ...more

This video shows a tutorial of adding fractions. The first example shows a fraction that has like denominators so all you had to do is add the denominators. In the second example it shows two fractions that do not have like denominators. Therefore, you need to find the greates ...more

In this tutorial, we learn how to add rational expressions. When you have two rational expressions, you will first need to factor every denominator. After this, find the lowest common denominator from all of them. After this, rewrite every fraction so it has the lowest common ...more

Learn how to add or subtract fractions with math in simple steps. First convert any story line you have into a fraction. Now you have to convert the denominators so that both the fractions have the same. To do so multiply both the numerators and denominators with the same numb ...more

In this video tutorial the author shows how to convert between customary units. He gives a chart which contain various convention tables showing the equivalents of various measurement units. He says a general rule that when converting a smaller unit to large unit we divide the ...more

This video shows you how to easily reduce fractions. A fraction contains a numerator and a denominator. The numerator is the number on the top and the denominator is the number at the bottom of the fraction. The first thing you have to do to reduce fractions is look for the gr ...more