Question

Gente por favor me ajuda
B) (-2/3) + ( -5/6)

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

Answer 1

Oi...

b)

( - 2/3) + ( - 5/6)

- 2/3 - 5/6 ⇒ mmc = 6

- (4 + 5)/6

- 9/6 ÷3

- 3/2

c)

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

3/5 - 1/3 - 2/5 ⇒

3 - 2/5 - 1/3

1/5 - 1/3 ⇒mmc = 15

3 - 5/15

- 2/15

Espero ter ajudado,