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math

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1 4/5 x 1 1/3 x 1 3/4=720/48


then I get 15 not sure it that is correct?

  • math -

    1 4/5 = 9/5
    1 1/3 = 4/3
    1 3/4 = 7/4
    multiply it all together and you have

    9/5 * 4/3 * 7/4 = 9*4*7 / 5*3*4

    9 i 3*3, so you can cancel out 3*4 in both top and bottom, leaving you with

    3*7 / 5 = 21/5

    How ever did you get 15?

  • math -

    good question? I just did it again and came up with the answer you did.



    Thank you Steve

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