Question

a)2
$\frac{2}{5}$

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Answer 1

Resposta:

$\frac{4}{5}=0,8$

Explicação passo-a-passo:

$2\cdot \frac{2}{5}\\=\frac{2}{1}\cdot \frac{2}{5}\\=\frac{2\cdot \:2}{1\cdot \:5}\\=\frac{4}{1\cdot \:5}\\=\frac{4}{5}$