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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.

Sources:

See Also:
Least Common Denominators

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Mahalo math expert Julie Clark explains how to subtract fractions .

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Aug 11, 2008 ... Learn how to subtract fractions with unlike denominators, including how to
borrow. Watch my latest video here on Mixed to Improper Fractions!

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

Sep 2, 2014

www.themathpage.com/arith/add-fractions-subtract-fractions-1.htm

A

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How to

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Calculator for

www.virtualnerd.com/pre-algebra/rational-numbers/fraction-addition-subtraction/subtract-fractions/subtract-mixed-numbers-different-denominators-convert-improper-fractions

Note:

Helpful Resources

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