Question

-2÷$\frac{4}{3}$×$( \frac{4}{3}) +( \frac{4}{25}) (- \frac{5}{8}) =$
Qual a resposta???

Answer 1

$\ \ \ -2: \frac{4}{3} \times( \frac{4}{3} )+( \frac{4}{25})\cdot (-\frac{5}{8}) \\ \\=-2\cdot \frac{3}{4}\cdot\frac{4}{3} - \frac{20}{200}\\ \\=-2 - \frac{20^{:20}}{200_{:20}}\\ \\=-2 - \frac{1}{10}\\ \\=- \frac{20}{10} - \frac{1}{10}\\ \\=\frac{-20-1}{10} \\ \\= -\frac{21}{10}$