Question

quanto da 2. 1 sobre 9 + 16 sobre 10
$2 \times \frac{1}{9} + \frac{16}{36} =$

Answer 1

$\frac{2}{9} + \frac{16}{36} = x \\ \\ \frac{8}{36} + \frac{16}{36} = x \\ \\ \frac{24}{36} = x \\ \\ x = \frac{2}{3}$