Question

a) 1/3 + 5/12 + 10/15 *

12/17

17/12

80/62

62/80

b) 10/12 - 2/3 *

1/6

1/12

4/12

2/6

c) 4/3 . 7/2 . 2/5 *

20/15

30/15

28/15

15/28

d) 3/4 : 7/8 *

5/7

8/7

1

6/7






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Answer 1

Resposta:

a) 17/12

b) 1/6

c) 28/15

d) 6/7

Explicação passo-a-passo:

a)

1/3 + 5/12 + 10/15

9/12 + 10/15

85/60

Simplificando;

(85/60) ÷ 5

17/12

b)

10/12 - 2/3

2/12

Simplificando;

(2/12) ÷ 2

1/6

c)

4/3 × 7/2 × 2/5

28/6 × 2/5

56/30

Simplificando;

(56/30) ÷ 2

28/15

d)

3/4 ÷ 7/8

24/28

Simplificando;

(24/28) ÷ 2

(12/14) ÷ 2

6/7

Espero ajudar.