Question

Alguém sabe fazer o desenvolvimento dessas?​

Answer 1

Resposta:

$n) \: \frac{2}{3} \div ( - \frac{3}{5} ) \\ \\ - \frac{2}{3} \div \frac{3}{5} \\ \\ - \frac{2}{3} \times \frac{5}{3} \\ \\ = - \frac{10}{9}$

$o) \: - \frac{1}{2} \div ( - \frac{4}{7}) \\ \\ \frac{1}{2} \div \frac{4}{7} \\ \\ \frac{1}{2} \times \frac{7}{4} \\ \\ = \frac{7}{8}$

$p) \: \frac{1}{7} \div ( - \frac{3}{5} ) \\ \\ - \frac{1}{7} \div \frac{3}{5} \\ \\ - \frac{1}{7} \times \frac{5}{3} \\ \\ = - \frac{5}{21}$