Question

Calcular a razão 0,2 e 0,4;

Answer 1

$\frac{0,2}{0,4} =\frac{\frac{2}{10} }{\frac{4}{10} } =\frac{2}{10} :\frac{4}{10}=\frac{2}{10}  *\frac{10}{4} =\frac{20}{40}= \frac{2}{4} =\frac{1}{2} =0,5$