Question

4/7 + ½. (3 – 2/5) ÷ 5/8. (¼ - 3) alguém pode me ajudar nessa por favor.

Answer 1

Resposta:

$- \frac{901}{175}$

Explicação passo-a-passo:

$\frac{4}{7} + \frac{1}{2} \times (3 - \frac{2}{5} ) \div \frac{5}{8} \times ( \frac{1}{4} - 3) \\ \frac{4}{7} + \frac{1}{2} \times ( \frac{15 - 2}{5} ) \div \frac{5}{8} \times ( \frac{1 - 12}{4} ) \\ \frac{4}{7} + \frac{1}{2} \times \frac{13}{5} \div \frac{5}{8} \times ( - \frac{11}{4} ) \\ \frac{4}{7} + \frac{13}{10} \div \frac{5}{8} \times ( - \frac{11}{4} ) \\ \frac{4}{7} + \frac{13}{10} \times \frac{8}{5} \times ( - \frac{11}{4} ) \\ \frac{4}{7} + ( - \frac{13 \times 11 \times 2}{10 \times 5} ) \\ \frac{4}{7} + ( - \frac{13 \times 11}{5 \times 5} ) \\ \frac{4}{7} - \frac{143}{25} \\ \frac{100 - 1001}{175} \\ \boxed{\boxed{- \frac{901}{175}}}$