Question

A)
$\frac{5}{6} + \frac{1}{8}$

B)
$\frac{1}{2} - \frac{1}{4}$

C)
$\frac{7}{8} . \frac{9}{4}$
??????
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Answer 1

$a) \frac{5}{6} + \frac{1}{8} = \frac{63}{24} = \frac{21}{8} \\ b) \: \frac{1}{2} - \frac{1}{4} = \frac{-1}{4} \\ c) \: \frac{7}{8} . \frac{9}{4} = \frac{63}{32}$