Question

[1-(3/4+1/5)]÷3/40 resolva​

Answer 1

Resposta:

Explicação passo-a-passo:

[1-(3\4+1\5)] : 3\40 =         mmc = 20

[1-(15+4\20)] : 3\40 =

[1-19\20] : 3\40 =           mmc = 20

[20-19\20] : 3\40 =

1\20 : 3\40 =

1\20.40\3 =       simplificamos 20 com 40

= 2\3