Question

calcule essa operação...​

Answer 1

Resposta:

Explicação passo-a-passo:

(21/5+7/4 -(3/5.7/4).5):3/2

(21/5+7/4 -(21/20).5):3/2

(21/5+7/4-105/20):3/2

(21/5+7/4-21/4):3/2 mmc 20

(84/20+35/20-105/20) : 3/2

( 14/20)x 2/3

7/10 x2/3

14/30 = 7/15