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What is 7/9 - 5/18 lowest common denominator

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  1. 1 April, 18:26
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    7/9 = 14/18

    14-5=9

    9/18=1/2
  2. 1 April, 18:42
    0
    The LCD is 18

    9=3*3

    18=2*3*3

    no need for repeats for instance since * 3 is in both you would only use it once

    so 2*3*3=18
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