Question

4/3 + 7/5 × (1/2 +4/9) - 1/5 =​

Answer 1

Resposta:

$\frac{4}{3} + \frac{7}{5} \times ( \frac{1}{4} + \frac{4}{9} ) - \frac{1}{5} \\ = \frac{4}{3} + \frac{7}{5} \times \frac{25}{36} - \frac{1}{5} \\ = \frac{4}{3} + \frac{175}{180} - \frac{1}{5} \\ = \frac{4}{3} + \frac{35}{36} - \frac{1}{5} \\ = \frac{240 + 175 - 36}{180} \\ = \frac{379}{180}$