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March 28, 2017

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Are the following fractions equivalent? justify your answer

18/24 9/12 15/20 6/9

  • Math - ,

    Three of the fractions = 3/4

    One does not.

  • Math - ,

    18=2*3*3
    24=2*2*2*3
    18/24=(2*3*3)/(2*2*2*3)=3/(2*2)=3/4

    9=3*3
    12=2*2*3
    9/12=(3*3)/(2*2*3)=3/(2*2)=3/4

    15=3*5
    20=2*2*5
    15/20=(3*5)/(2*2*5)=3/(2*2)=3/4

    6=2*3
    9=3*3
    6/9=(2*3)/(3*3)=2/3

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