Question

me ajudem por favo ​

Answer 1

Resposta:

a) 7/3

b) 5/9

c) 9/2

d) 7/8

e) 16/35

f) 81/20

Explicação passo-a-passo:

a) 2/3 + 5/3 = 7/3

b) 8/9 - 3/9 = 5/9

c) 5/2 + 1/2 + 3/2  = 9/2

d) 1/8 + 3/4 = x

MMC de 8 e 4 = 8

1/8 + 6/8 = 7/8

e) 3/5 - 1/7 =

MMC de 5 e 7 = 35

21/35 - 5/35 = 16/35

f) 7/2 + 3/4 - 1/5 = x

MMC de 2, 4 e 5 = 20

70/20 + 15/20 - 4/20 = 81/20