Question

Calcule o valor de a e b:
A)3/24
B)5/24
C) -0,82
D)-5/25
E)+3,8

Answer 1

Resposta:

B) 5/24

Explicação passo a passo:

A = -1/2 + 2/3 = 1/6

2 - 1/4 = 7/4

1/6 * 7/4 = 7/24

B = -2 + 1/3 = -5/3

2/3 - 3 = -7/3

-5/3 : -7/3 = -5/3 * -3/7 = 15/21 = 5/7

A * B = 7/24 * 5/7 = 35/168 = 5/24