Question

3/7 x (-7/5) - 5/8 : (- 5/2) como faço?

Answer 1

$\frac{3}{7} .(- \frac{7}{5} )- \frac{5}{8} :(- \frac{5}{2} )= \\ \\ = -\frac{21}{35} - \frac{5}{8} .(- \frac{2}{5} )= \\ \\ = - \frac{21}{35} -(- \frac{10}{40} )= \\ \\ =- \frac{3}{5}+ \frac{1}{4} = \\ \\ =\frac{-3.4+5.1}{20} = \frac{-12+5}{20} =- \frac{7}{20}$