Question

me ajudem por favor.?​

Answer 1

Explicação passo-a-passo:

a) 1/2 - (1/8 + 1/16)

Vou manipular a fração 1/8 para ela ter o mesmo denominador da fração que está somando com ela

1/2 - (1/8 × 2/2) + 1/16)

1/2 - (2/16 + 1/16)

1/2 - 3/16

1/2 × 8/8= 8/16

8/16 - 3/16

5/16

b) 5/6 + (1/4 - 1/8)

5/6 + (2/8 - 1/8)

5/6 + 1/8

23/24

c) (3/4 + 1/2) - (1/8 + 1/16)

(3/4 + 2/4) - (2/16 + 1/16)

5/4 - 3/16

20/16 - 3/16

17/16

d) (5/4 + 5/12) - (1/2 - 1/4)

(15/12 + 5/12) - (2/4 - 1/4)

20/12 - 1/4

20/12 - 3/12

17/12

e) (4 + 1/4) - (2 + 1/2)

(16/4 + 1/4) - (4/2 + 1/2)

17/4 - 5/2

17/4 - 10/4

7/4

f) (1 + 1/8) + (4 + 1/2) - (2 - 1/2)

(8/8 + 1/8) + (8/2 + 1/2) - (4/2 - 1/2)

9/8 + 9/2 - 3/2

9/8 + 6/2

9/8 + 24/8

33/8