Question

Resolver a seguinte expressão:
$( \frac{1}{4} ) ^{2} . \frac{4}{5} + \frac{2}{5} : ( \frac{-1}{3}) ^{3}$

Answer 1

$( \frac{1}{4} ) ^{2} . \frac{4}{5} + \frac{2}{5} : ( -\frac{1}{3}) ^{3} \\ \\ ( \frac{1}{16} ) . \frac{4}{5} + \frac{2}{5} : (- \frac{1}{27}) \\ \\ ( \frac{4}{80} ) + \frac{2}{5} . (-27) \\ \\ \frac{1}{20} - \frac{54}{5} \\ \\ \frac{1-216}{20} \\ \\ -\frac{215}{20} = -\frac{43}{4} = -10,75$