Question

Calcule as frações e, se possível, simplifique o resultado.

a) 1/10 + 7/10

b) 5/6 - 1/6

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

d) 7/15 - 3/15 - 1/15

e) 7/20 + 1/20 + 7/20

f) 5/18 + 11/18 - 13/18

g) 7/6 + 4/6 - 5/6 + 3/6 - 9/6

h) 1/20 + 3/20 + 11/20 - 7/20​

Answer 1

Resposta:

A) 1/10 = 7/10 = 8/10(simplificado por 2) = 4/5

B) 5/6 - 1/6 = 4/6 (simplificado por 2) = 2/3

C) 1/10 + 7/10 - 3/10 = 5/10 (simplificado por 5) +

1/5

d) 7/15 - 3/15 - 1/15 = 4/15

e) 7/20 + 1/20 + 7/20= 15/20

f) 5/18 + 11/18 - 13/18 = 2/18 (simplificado por 2) + 1/8

g) 7/6 + 4/6 - 5/6 + 3/6 - 9/6 = -8/6

h) 1/20 + 3/20 + 11/20 - 7/20= 7/20

Prontinho