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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.

Example of subtracting fractions with unlike denominators | Addition ...

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

If you conquered adding fractions with different denominators, then subtracting fractions will be a snap. Don't worry...we'll take it slow and explain every step.

Subtracting fractions with unlike denominators | Adding and ...

www.khanacademy.org/math/arithmetic/fraction-arithmetic/arith-review-add-sub-fractions/e/subtracting_fractions

Practice subtracting fractions that have different denominators.

Subtracting Fractions - Math is Fun

www.mathsisfun.com/fractions_subtraction.html

There are 3 simple steps to subtract fractions. Step 1. Make sure the bottom numbers (the denominators) are the same; Step 2. Subtract the top numbers (the  ...

Subtract Two Fractions - WebMath

www.webmath.com/subfract.html

This page will show you how to subtract fractions. Choose the form that best matches your problem, and fill in it. Only fill in one of the three forms, please.

www.ask.com/youtube?q=How to Subtract Fractions?&v=1xsKnSoTAJA
Feb 12, 2014 ... Subtracting Fractions with different denominators can be done mentally both accurately and rapidly using this cool math trick. The way to minus ...
www.ask.com/youtube?q=How to Subtract Fractions?&v=PvD_I8tnOV4
Jan 13, 2011 ... Check out Bas Rutten's Liver Shot on MMA Surge: http://bit.ly/MMASurgeEp1 Mahalo math expert Julie Clark explains how to subtract fractions.

Subtracting Fractions With Different Denominators

www.helpwithfractions.com/subtracting-fractions/subtracting-fractions-different-denominators/

Sep 2, 2014 ... When subtracting fractions with different denominators, we follow the same process we used for adding unlike fractions.

Fractions - Adding and Subtracting fractions - First Glance - Math.com

www.math.com/school/subject1/lessons/S1U4L3GL.html

Like fractions are fractions with the same denominator. You can add and subtract like fractions easily - simply add or subtract the numerators and write the sum ...

Subtracting Fractions | MathPlayground.com

www.mathplayground.com/fractions_sub.html

Practice subtracting fractions at MathPlayground.com!