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To add or subtract fractions, they must have the same denominator. If they do not, make the least common multiple of all of the denominators the new denominator. After adding or subtracting, reduce your answer.
When giving the fractions like denominators, whatever number you multiply the old denominator of a fraction by, you must also multiply it by the numerator.

www.khanacademy.org/math/in-seventh-grade-math/rational-numbers/copy-of-addition-subtraction-fractions/v/adding-fractions-with-unlike-denominators

Adding fractions (denominators 10 & 100) · Practice: Add fractions ... How to add fractions that have different denominators. AboutTranscript. To solve this ...

www.khanacademy.org/math/arithmetic/fraction-arithmetic/arith-review-add-sub-fractions/v/adding-small-fractions-with-unlike-denominators

Adding and subtracting mixed number with unlike denominators .... -math/ fractions-1/addition-subtraction-fractions/v/adding-fractions-with-unlike- denominators

www.mathsisfun.com/fractions_addition.html

Adding Fractions. There are 3 Simple Steps to add fractions: Step 1: Make sure the bottom numbers (the denominators) are the same; Step 2: Add the top ...

www.coolmath.com/prealgebra/01-fractions/fractions-12-adding-subtracting-different-denominators-01

This prealgebra lesson explains how to add and subtract fractions when the denominators are different.

www.calculatorsoup.com/calculators/math/adding-fractions-calculator.php

Calculator for adding and subtracting fractions with like or unlike denominators. The fraction calculator can add or subtract 2 fractions, up to 10 fractions, and ...

www.mathplayground.com/fractions_add.html

Practice adding fractions at MathPlayground.com! ... MathPlayground.com. For fun and educational math games. created by teachers, please visit. A. B. E. F. C.

.ask.com/youtube?q=Math+Adding+Fractions&v=RIhwfqULbAE
May 2, 2012 ... Adding fractions with different denominators, step by step, examples. For more free math videos visit http://MathMeeting.com.

www.brainpop.com/math/numbersandoperations/addingandsubtractingfractions

In this educational animated movie about Math learn more about how to add and subtract different fractions.

www.math-aids.com/Fractions

Click here for a Detailed Description of all the Fractions Worksheets. If you're looking for a great tool for adding, subtracting, multiplying or dividing mixed ...