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What is -21/10 divided by 56/ 24. please explain how you did it.

 Oct 23, 2018
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\(\text{the key is that } \dfrac a b \div \dfrac c d = \dfrac a b \times \dfrac d c\\ -\dfrac{21}{10}\div \dfrac{56}{24} = -\dfrac{21}{10}\times \dfrac{24}{56} = -\dfrac{9}{10}\)

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 Oct 23, 2018

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