Question

Cuanto es (+2/5)-(-1/5) y (-4/9)-(+2/9)

Answer 1

Explicación paso a paso:

$( \frac{2}{5} ) - ( - \frac{1}{5} ) = \frac{2}{5} + \frac{1}{5} = \frac{3}{5} \\ \\ \\ ( - \frac{4}{9} ) - ( \frac{2}{9} ) = - \frac{4}{9} - \frac{2}{9} = - \frac{6}{9} \\ \\ simplificamos \:y \: queda \: - \frac{2}{3}$