Finding common denominators

Calculate the least common multiple LCM (3; 7; 13) LCM (3; 7; 13) = 273. Find additional factors for each fraction, for this divide LCM by the denominators of each fraction: 273 : 3 = 91 (factor

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How to Find Common Denominators

Step 1: Find the least common denominator. There are two ways that we can find the common denominator: skip counting using multiples or by factoring each denominator. For this

Adding and subtracting fractions by finding a common

The easiest way to find a common denominator for a pair of fractions is to multiply the numerator and denominator of each fraction by the denominator of the other. So, if you’re

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A common denominator is a number with which both denominators share at least one factor other than 1. Fractions without a Common Denominator. We can obtain common denominators by multiplying both numerator (top) and denominator (bottom) by the same amount. For example, consider the addition of two fractions that do not have the same denominator: Addition of 2 ⁄ 5 and 1 ⁄ 2 . First, multiply 2 ⁄ 5 by 2 ⁄ 2 to get 4 ⁄ 10 .

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What is a Common Denominator?

To get the denominator from 6 to 24, we have to multiply it by 4. So if we don't want to change the value of 5/6, we have to multiply the numerator and denominator by the same thing. So let's multiply the

How To Find a Common Denominator? Definition, Examples

This easy strategy for common denominators will help students remember the importance of them. I go through these three examples with my students. I ask them what is 2