Question

qual a conta e o resultado dessa conta -5/2+3/4-8/7​

Answer 1

Olá.

$\frac{ -5}{2} + \frac{3}{4} - \frac{8}{7} = \frac{ - 70 + 21 - 32}{28} = \frac{ - 81}{28}$

MMC

2,4,7______ I 2

1,2,7______ I 2

1,1,7______ I 7

1,1,1______ I 2 . 2 . 7 = 28

Resposta -81/28