Question

alguém por favor me ajudem !!!!!​

Answer 1

Resposta:

Explicação passo-a-passo:

a) (4/5) ÷ (2/3) =

(4/5) . (3/2) =

(2/5) . (3) =

6/5.

b)  (4/5) ÷ (2) =

(4/5) . (1/2) =

(2/5) . (1) =

2/5.

c)  (13/49) ÷ (39/14) =

(13/49) . (14/39) =

(13/49) . (14/3.13) =

(1/49) . (14/3) =

(1/7.7) . (7.2/3) =

(1/7) . (2/3) =

2/21.

d)  (81/5) ÷ (27/25) =

(9.9/5) . (5.5/9.3) =

(9) . (5/3) =

3 . 5 =

15.