Question

calcule: a) 7/3 + 1/3 = b) 8/5 - 3/6 = c) - 1/4 - 2/3 = d) 11/12 + 2/9 - 5/6 = e) 3/4 x ( - 1/2 ) =​

Answer 1

Explicação passo-a-passo:

a)

7 + 1 = 8

3 3 3

b)

8 -3 =

5 6

MMC(5, 6) = 30

48 -15 = 33 = 11

30 30 30 10

c)

-1 -2 =

4 3

MMC(4, 3) = 12

-3 -8 = -11

12 12 12

d)

11 + 2 - 5

12 9 6

33 + 8 - 30 = 11

36 36 36 36

d)

3 × -1 = -3

4 2 8

e)

5 × 1 = 5

4 2 8