Question

Numarul 7/15 * (-5/28) : 8/21 este :
P.S trebuie sa dea -7/32

Answer 1

$\frac{7}{15} *(- \frac{5}{28} ): \frac{8}{21} =- \frac{35}{420} : \frac{8}{21} =- \frac{35}{420} * \frac{21}{8} =- \frac{735}{3360} ^{(7} = \\ =- \frac{105}{480} ^{(5} = - \frac{21}{96} ^{(3} = -\frac{7}{32}$