Question

-1/3.-1/4.-2/5.-3/7=

Answer 1

Minha resposta ficou assim:

Answer 2

$-\frac{1}{3}$ * $-\frac{1}{4}$ * $-\frac{2}{5}$ * $- \frac{3}{7}$

$-\frac{1}{3}$ * $-\frac{1}{4}$ = $\frac {1}{3.4}$
$-\frac{2}{5}$ * $- \frac{3}{7}$ = $\frac{2.3}{5.7}$

$\frac {1}{3.4}$ * $\frac{2.3}{5.7}$ = $\frac{1}{2.5.7}$

 $\frac{1}{2.5.7}$ = $\frac{1}{70}$