Question

Por favor me ajuda
A) (-2/3) : (10/21)

B) (6/7) . (2/3)

Answer 1

Resposta:

a)7/5 b)4/7

Explicação passo-a-passo:

a)

-2/3÷10/21

-2/3×21/10

-7/10

7/5

b)

2/7×2

4/7