Question

determine o valor da expressão numérica [2/5 + 1 - 1/3 - (3/4 + 8/3)]
ajudem pfvr!! ;-;​

Answer 1

Vamos là.

(2/5 + 1 - 1/3 - (3/4 + 8/3)) =

6/15 + 15/15 - 5/15 - (9/12 + 32/12) =

16/15 - 41/12 = 192/180 - 615/180 = -47/20

Answer 2

Explicação passo-a-passo:

[2/5+1-1/3-(3/4+8/3]=

[2/5+1-1/3-3/4-8/3]= mmc=60

(24+60-20-45-160)/60=

-141/60 : 3/3 = -47/20