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11 March, 00:06

What is the common denomitator of this fractions 9/14 1/7 8/21

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Answers (2)
  1. 11 March, 01:38
    0
    21 would be the answer because you can multiply everyone of those numbers to get 21.
  2. 11 March, 01:50
    0
    So first find the factors of the denomenatores

    14=2 times 7

    7=7

    21=7 times 3

    common one would be having at least one 2, one 7, and one 3

    find what numbers can be made by all of them

    2 times 7 times 3

    2 times 7

    7

    7 times 3

    they are all in it

    2 times 3 time s7=42

    common denoomenator is 42
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