Question

Quanto é 1/3 - [ 2/5 - (3/2 - 7/15)] + 7/10

Answer 1

Resposta:

Explicação passo a passo:

1/3-[2/5-(3/2-7/12)]+7/10=

1/3-[2/5-(45/30-14/30)]+7/10=

1/3-[2/5-31/30]+7/10=

1/3-[12/30-31/30]+7/10=

1/3-[-19/30]+7/10=

1/3+19/30+7/10=

10/30+19/30+21/30=

50/30= [ simplifica por 10]

5/3