Question

URGENTE
e)(-5/7). (1/4)-(5/4). (2)

Answer 1

$\frac{-5}{ 7}. \frac{1}{4} - \frac{5}{4}. 2$
m.m.c 7 e 4=28

-20.7- 35.56
___________ > corta o 28
        28

-140 - 1960= -2100