Question

Quanto vale a – b, se a = 2/3 e b = –3/5? *
a) 19/15
b) 2/5
c) 9/2
d) 1/5

Answer 1

Resposta:

A)19/15

Explicação passo-a-passo:

2 3 10+9 19

--- +---- = ------ = ----

3 5 15 15