Question

Calcule as fraçoes e, se possivel, 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

Explicação passo-a-passo:

A) 1/10+7/10=8/10(÷2) = 4/5

B) 5/6-1/6= 4/6(÷2) = 2/3

C) 1/10+7/10-3/10= 8/10-3/10= 5/10(÷5)= 1/2

D) 7/15-3/15-1/15= 4/15-1/15= 3/15(÷3)= 1/5

E) 7/20 + 1/20 + 7/20= 15/20(÷5)= 3/4

F) 5/18 + 11/18 - 13/18= 16/18-13/18= 3/18(÷3)= 1/6

G) 7/6 + 4/6 - 5/6 + 3/6 - 9/6= 11/6-8/6= 3/6(÷3)= 1/2

H) 1/20 + 3/20 + 11/20 - 7/20= 15/20-7/20= 8/20(÷4)= 2/5

Frações com o mesmo denominador, repete o denominador e faz os cálculos normalmente.