Question

Me ajudem com o dever de matemática!

Answer 1

Resposta:

Explicação passo a passo:

A)

2/3 . 1/4 . 3/9 (:3)/(:3)

= 2/4 (:2)/(:2) . 1/3 . 1/3

= 1/2 . 1/9

= 1/18

B)

3/8 . 1/2 . 2/3

= 3/16 . 2/3

= 3/3 . 2/16 (:2)/(:2)

= 1/8

C)

4/5.3/7.1/8

= 4/8 (:4)/(:4). 3/7 . 1/5

= 1/2 . 3/7 . 1/5

= 3/70

D)

6/5.3/5 = 18/25