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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.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  ...

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

Sal subtracts fractions like 4/3 and 1/5. ... Prepare with these 20 lessons on Fractions. See 20 lessons ... Subtracting fractions with unlike denominators. About ...

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

Practice subtracting fractions that have different denominators.

www.ask.com/youtube?q=Subtracting+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.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=Subtracting+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.

www.mathplayground.com/fractions_sub.html

Practice subtracting fractions at MathPlayground.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/Subtracting_Fractions.html

This fraction worksheet is great for testing children and providing more practice in subtracting fractions. The worksheets may be selected for five different ...