Question

Resolva as operações com frações:

A) ( 1 + 3/5) ÷ ( 3 - 3/5) - ( 1 - 1/4) × ( 1 + 1/3)

B) ( 7/2 × 4/14) - [84 - (8/5 + 3/6) + 4/7]

Answer 1

Resolva as operações com frações:

A) ( 1 + 3/5) ÷ ( 3 - 3/5) - ( 1 - 1/4) × ( 1 + 1/3)

$\frac{8}{5} \div \frac{12}{5} - \frac{3}{4} \times \frac{4}{3} \\ \\ \frac{8}{5} \times \frac{5}{12} - 1 \\ \\ 2 \times \frac{1}{3} - 1 \\ \\ \frac{2}{3} - 1 \\ \\ - \frac{1}{3}$






B) ( 7/2 × 4/14) - [84 - (8/5 + 3/6) + 4/7]



$\frac{2}{2} - (84 - \frac{21}{10} + \frac{4}{7} ) \\ \\ 1 - \frac{5773}{70} \\ \\ - \frac{5703}{70}$