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  1. Change the fractions, so the denominators are the same. The easiest way to do this is to multiply both the numerator and denominator of each fraction by the denonimator of the other.
  2. Add or subtract the numerators and put the result over the new denominator you calculated in step 1.

EXAMPLE:

1/2 + 1/3 = (1/2)3 + (1/3)2 = (1 x 3)/(2 x 3) + (1 x 2)/(3 x 2) = 3/6 + 2/6 = 5/6

1/2 - 1/3 = (1/2)3 - (1/3)2 = (1 x 3)/(2 x 3) - (1 x 2)/(3 x 2) = 3/6 - 2/6 = 1/6

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Q: What are the steps to adding and subtracting unlike denominators?
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Adding and subtracting unlike fractions steps?

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