Question

1/6 - 6/5 + 2/6 - 1/2
12/10 - 1/5 + 3/4
-1/7 +2/3 - 5/7
Me ajudem por favor

Answer 1

Oi...

a)

1/6 - 6/5 + 2/6 - 1/2

1/6 - 6/5 + 2/6 - 1/2⇒ o mmc de (6,5,6,2) = 30

5 - 36 + 10 - 15/30

15 - 51/30

- 36/30 ÷ 6

- 6/5

b)

12/10 - 1/5 + 3/4

6/5 - 1/5 + 3/4 ⇒o mmc de (5,5,4) = 20

24 - 4 + 15/20

39 - 4/20

35/20 ÷ 5

7/4

c)

- 1/7 + 2/3 - 5/7⇒o mmc de (7,3,7) = 21

- 3 + 14 - 15/21

- 18 + 14/21

- 4/21

Espero ter ajudado.

Bons estudos.