Question

calcule o valor da expressão numérica 7-[11/2-13/4.(1/2+1/5)]

Answer 1

Resposta:

151/40

Explicação passo-a-passo:

7-[11/2-13/4.(1/2+1/5)]

=7-[11/2-13/4.(5/10+2/10)]

=7-[11/2-13/4.7/10]

=7-[11/2-91/40]

=7-[210/40-91/40]

=7-129/40

= 280-129/40

=151/40