Question

Efetue as adições:

A) (+3/5) + (+1/2)

B) (-2/3) + (+5/4)

C) (-4/9) + (+2/3)

D) (-3/7) + (+2/9)

E) (1/8) + (-7/8)

F) (-1/3) + (-1/5)

G) (-1/8) + (+5/4)​

Answer 1

Olá..

Efetue as adições:

a)

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

3/5 + 1/2

6 + 5/10

11/10

b)

(-2/3) + (+5/4)

- 2/3 + 5/4

- 8 + 15/12

7/12

c)

(-4/9) + (+2/3)

- 4/9 + 2/3

- 4 + 6/9

2/9

d)

(-3/7) + (+2/9)

- 3/7 + 2/9

- 27 + 14/63

- 13/63

e)

(1/8) + (-7/8)

1/8 - 7/8

1 - 7/8

- 6/8 ÷ 2

- 3/4

f)

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

- 1/3 - 1/5

- (5 + 3)/15

- 8/15

g)

(-1/8) + (+5/4)​.

- 1/8 + 5/4

- 1 + 10/8

9/8

Espero ter ajudado.