Question

Calcular e simplificar se possível 9/2 +7/4 + 2/3 = ?
2/5 + 1/10 + 1/2 = ?
2/7 + 1/10 + 3/2 = ?

Answer 1

Oi...

Resolução:

a)

9/2 +7/4 + 2/3 = mmc 2, 4, 3 = 12

54 + 21 + 8/12

83/12

b)

2/5 + 1/10 + 1/2 =  mmc 5, 10, 2 = 10

4 + 1 + 5/10

10/10

1

c)

2/7 + 1/10 + 3/2 = mmc 7, 10, 2 = 70

20 + 7 + 105/70

132/70 ÷ 2

66/35

Bons estudos.