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Thread: Simplifying

  1. April 14th 2012, 08:41 AM #1
    vaironxxrd
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    Simplifying

    How can I simplify the following...
    14-9/4^2- 2^3
    The test puts it exactly in this format I don't understand if it's to confuse me? Or I simply don't know my math very well.

    Here I will use PEMDAS.

    My solution
    14-\frac{9}{16}-8

    \frac{14}{1}-\frac{9}{16}-8

    = \frac{224}{16}-\frac{9}{16}-8

    = \frac{215}{16}-\frac{128}{16}

    = \frac{87}{16}
    or
    = 5\frac{7}{16}
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  2. April 14th 2012, 08:45 AM #2
    emakarov
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    Re: Simplifying

    This is correct.

    Edit: A simpler way is

    14-\frac{9}{16}-8=6-\frac{9}{16}=5+\frac{16}{16}-\frac{9}{16}=5\frac{7}{16}
    Last edited by emakarov; April 14th 2012 at 08:49 AM.
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  3. April 14th 2012, 08:48 AM #3
    vaironxxrd
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    Re: Simplifying

    Quote Originally Posted by emakarov View Post
    This is correct.
    Weird my sample test is not providing me the right answer.
    Probably the test did not include the "NONE OF THESE" answer.
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