Question

calcule os produtor,simplificando quando possível.a)9/20 • 5/6 b)3/8 • 5/3 c)3 • 2/5 • 1/3 d)2 1/3 • 3 2/5 e)3/7 • 14/5 • 5/4 f)4/5 • 0 • 5/4 g)3 1/4 • 5/21 • 7/13 h)2/10 • 3 • 15/9

Answer 1

Resposta:

a) 3/4; b) 5/3; c) 2/5; d) 7; e) 3/2; f) 0; g) 12/5; h) 1.

Explicação passo a passo:

a) 9/20 • 5/6 =

45/60 = 3/4.

b) 3/8 • 5/3 =

15/24 = 5/3.

c) 3 • 2/5 • 1/3 =

6/5 . 1/3 =

6/15 = 2/5.

d) 2 1/3 • 3 2/5 =

2 1/3 =  3 . 2 + 1/3 = 7/3.

3 2/5 = 5 . 3 + 2/5 = 15/5 = 3.

7/3 . 3 =

21/3 = 7.

e) 3/7 • 14/5 • 5/4 =

42/35 . 5/4 =

210/140 = 3/2.

f) 4/5 • 0 • 5/4 =

0 . 5/4 = 0.

g) 3 1/4 • 5/21 • 7/13 =

3 1/4 = 4 . 3 + 1/4 = 13/4.

13/4 . 5/21 . 7/13 =

65/84 . 7/13 =

455/ 1.092 = 12/5.

h) 2/10 • 3 • 15/9 =

6/10 . 15/9 =

90/90 = 1.