Question

4)
Calcule a expressão numérica:
3/2 + 4/5 - 2/3
a)
35/30
b)
c)
49/30
d)
23/30
e)​

Answer 1

Resposta:

C) 49/30

Explicação passo-a-passo:

= 3/2 + 4/5 - 2/3

= (3/2).(5/5) + (4/5).(2/2) - 2/3

= 15/10 + 8/10 - 2/3

= 23/10 - 2/3

= (23/10).(3/3) - (2/3).(10/10)

= 69/30 - 20/30

= 49/30