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Erika’s career consists of filing, typing and answering phones. She spends 1/6 of her time filing and 5/8 of her time typing. What fraction of her time does she spend answering phone calls?

Correct result:

a =  0.2083

Solution:

$a=1-1\mathrm{/}6-5\mathrm{/}8={\displaystyle \frac{5}{24}}=0.2083$

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