Question

1. Responda as Expressões abaixo.
a) 1/2+3 (3/5-1/3)

b) 4/5- (7/3-1)

c) (6/8-20/4+9/8).5/4​

Answer 1

Resposta:

Explicação passo a passo:

a) 1/2+3 (3/5-1/3)

1/2 + 3 (4/15) =

1/2 + 12/15 =

mmc entre 2 e 15 = 30

(15+24)/30 =

39/30 =

13/10 ou 1,3

b) 4/5- (7/3-1)

4/5 - 4/3 =

mmc entre 3 e 5 = 15

(12-20)/15 =

-8/15

c) (6/8-20/4+9/8).5/4​

mmc entre 4 e 8 = 8

(6-40+9)/8 ) 5/4

-25/8 * 5/4

-125/32 ou -3,90625

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