Question

Calcular as expressões, efetuando-se primeiramente entre os parênteses:

A) (2/3 + 1/2) - 1/3
B) (3/2 + 1/3) - 1/2
C) (7/2 + 1/4 + 1) - 3/8
D) (2 + 1/2) - (1 - 1/4)
E) (1 - 1/5) + (2 - 1/3)
F) (2 - 1/3) + (1 + 1/2)
G) (1 + 1/2) + (2 - 1/3)
H) 7/4 - (1/2 + 1/6 + 1/3)
I) (2 - 1/2) - (3/4 - 1/2)
J) (5/3 + 1) - (1 - 1/4)
I) (1 1/3 + 1) - (4/5 + 1/10)
M) 4/5 + (2 1/6 + 3 1/3)

Answer 1

Vou responder o máximo possível ok?

A) (2/3 + 1/2) - 1/3 R=5/6
(4/6+3/6) - 1/3
7/6-1/3
7/6-2/6
5/6

B) (3/2 + 1/3) - 1/2 R =4/3
(9/6+2/6) - 1/2
11/6 - 1/2
11/6 - 3/6
8/6
4/3


C) (7/2 + 1/4 +1) - 3/8 R=35/8
(14/4+1/4+4/4)-3/8
19/4 -3/8
38/8-3/8
35/8