arithmetic

how do you add fractions with uncommon denominators?

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  1. You need to change the fractions to have a common denominator.
    Check this site to see how to change fractions so they have a common denominator.

    http://www.themathpage.com/ARITH/add-fractions-subtract-fractions-1.htm

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    Ms. Sue
  2. You change the fractions to a common denominator, then add and reduce the fraction ( if possible)
    example: 1/3 + 1/4 = ?
    4/12 + 3/12 = 7/12

    This can not be further reduced.

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