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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

www.mathsisfun.com/fractions_subtraction.html

There are 3 simple

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

Sep 2, 2014

www.wikihow.com/Subtract-Fractions

How to

www.khanacademy.org/math/in-sixth-grade-math/fractions-1/addition-subtraction-fractions/v/subtracting-fractions-with-unlike-denominators

If you conquered adding fractions with different denominators, then

www.ask.com/youtube?q=Steps to Subtract Fractions&v=JCP_iTP1VcM

Apr 17, 2011 ... This video shows how to subtract fractions with different, or unlike, denominators.
There are 2 different examples shown with commentary.

www.algebra-class.com/subtracting-fractions-with-unlike-denominators.html

I am going to walk you

www.math-salamanders.com/steps-to-subtract-fractions.html

Here you will find our

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

Like

www.webmath.com/subfract.html

This page will show you how to