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Math Help - Whole numbers multiplied and divided by fractions without a whole number?

  1. #1
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    Whole numbers multiplied and divided by fractions without a whole number?

    I want to know how for instance, how to multiply/divide the following:

    7 over 8 divided by negative 2
    negative 7 times one over five

    I could just use a calculator figure it out, but I do not know how to times a whole number by a fraction or divide them - please help me understand?
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  2. #2
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    Quote Originally Posted by hoiguy1208 View Post
    I want to know how for instance, how to multiply/divide the following:

    7 over 8 divided by negative 2
    negative 7 times one over five

    I could just use a calculator figure it out, but I do not know how to times a whole number by a fraction or divide them - please help me understand?
    \displaystyle\frac{\left(\frac{7}{8}\right)}{-2}=\frac{7}{8}\left(-\frac{1}{2}\right)=-\frac{7(1)}{8(2)}

    \displaystyle\ -7\left(\frac{1}{5}\right)=-\frac{7}{1}\left(\frac{1}{5}\right)=-\frac{7}{5}
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