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18 October, 05:51

How to add fractions with unlike denominators?

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  1. 18 October, 08:25
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    Change the fractions so they have common denominators. For example. If adding 4/8 + 2/3, a common denominator of the two could be 24. Change both fractions to have a denominator of 24. To do this:

    (4/8) * (3/3) = 12/24

    (2/3) * (8/8) = 16/24

    Now that both fractions have denominators of 24, you can simply add the numerators to get your answer. in this case, it would be 28/24
  2. 18 October, 09:42
    0
    To add fractions with unlike denominators, you need to determine their common denominator.

    Say you need to add 3/9 + 7/12.

    3/9 and 7/12 have a common denominator of 36.

    Here how you solve this:

    3/9 = 12/36

    7/12 = 21/36

    12/36 + 21/36 = 33/36 = 11/12
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