Question

efetue os produtos (simplifique antes, se possível).

a) 1/2 × 2/5

b) 4/7 × 3/2

c) 6/5 × 5/4

d) 4/18 × 9/6

e) 7/6 × 32/21

f) 8/9 × 48/50 × 7/6

g) 10/12 × 48/50 × 25/16

h) 2/7 × 21/14 × 8/6​

Answer 1

Resposta:

a) 2/10

b) 6/7

c) 3/2

d) 1/3

e) 16/9

f) 32/225

g) 5/4

h) 4/7

Explicação passo-a-passo:

a) 1/2 × 2/5

1 × 2 / 2 × 5

2/10 ÷ 2

1/5

b) 4/7 × 3/2

4 × 3 / 7 × 2

12/14 ÷ 2

6/7

c) 6/5 × 5/4

6 × 5 / 5 × 4

30/20 ÷ 10

3/2

d) 4/18 × 9/6

4 × 9 / 18 × 6

36/108 ÷ 36

1/3

e) 7/6 × 32/21

7 × 32 / 6 × 21

224/126 ÷ 14

16/9

f) 8/9 × 48/50 × 7/6

8 × 48 × 7 / 9 × 50 × 6

384/2700 ÷ 12

32/225

g) 10/12 × 48/50 × 25/16

10 × 48 × 25 / 12 × 50 × 16

12000/9600 ÷ 2400

5/4

h) 2/7 × 21/14 × 8/6

2 × 21 × 8 / 7 × 14 × 6

336/588 ÷ 84

4/7

Espero ter ajudado :)