Question

calcule e simplifique o resultado se possível
A) 1/3 + 2/9 + 4/3=
B) 1/10 + 7/10 - 3/10=
C) 7/15 + 3/15 - 1/10=
D) 7/8 - 2/8 - 1/8=​

Answer 1

Resposta:

Explicação passo-a-passo:

A) 1/3 + 2/9 + 4/3

mmc 3, 9, 3 = 9

3 + 2 + 12 = 17/9

B) 1/10 + 7/10 - 3/10

1 + 7 - 3 = 5/10 = 1/2

C) 7/15 + 3/15 - 1/10

mmc 15, 10 = 30

14 + 6 - 3 = 17/30

D) 7/8 - 2/8 ( 1/4) - 1/8

mmc 8, 4 = 8

7 - 2 - 1 = 4/8 = 1/2