Question

Efetue as multiplicações:

a) 2/9 x 1/4

b) 2/3 x 7/5 x 10/21

Efetue as divisões:

a)2/5 : 3/8

b) 1/10 : 3/5

c) 1/5 : 23/56

d) 3/5 : 6/5

Answer 1

Olá,

1. a) 2/9 • 1/4
= 1/9 • 1/2
= 1/18

b) 2/3 • 7/5 • 10/21
= 2/3 • 2/3
= 4/9

2. a) 2/5 ÷ 3/8
= 2/5 • 8/3
= 16/15

b) 1/10 ÷ 3/5
= 1/10 • 5/3
= 5/30
= 1/6

c) 1/5 ÷ 23/56
= 1/5 • 56/23
= 56/115

d) 3/5 ÷ 6/5
= 3/5 • 5/6
= 15/30
= 1/2

Espero ter te ajudado!