Question

1. Calcule as trações e, se possivel. simpli-
fique 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

g- 1/20 + 3/20 + 11/20 - 7/20
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Answer 1

Resposta:

a- 1/10 + 7/10 =  8/10= 4/5

b- 5/6 - 1/6 =  4/6= 2/3

c- 1/10 + 7/10 - 3/10 = 8/10-3/10= 5/10= 1/2

d- 7/15 - 3/15? 1/15

se for +

4/15+1/15= 5/15= 1/3

se for -

4/15-1/15= 3/15= 1/5

e- 7/20 + 1/20 + 7/20 = 15/20= 3/4

f- 5/18 + 11/18 - 13/18 = 16/18-13/18= 3/18= 1/6

g- 7/6 + 4/6 - 5/6 + 3/6 - 9/6 = 14/6- 14/6= 0/6= 0

g- 1/20 + 3/20 + 11/20 - 7/20

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Explicação passo-a-passo: