Question

Efetue as multiplicacoes
(2/5) × (1/2)

(-5/6) ×(-3/4)

Answer 1

primeira conta (2/5)×(1/2)=2/10
(-5/6)×(-3/4)=+15/24

Answer 2

(2/5) . (1/2) = 2/10 = 1/5
(Veja que simplifiquei por 2)

(-5/6) . (-3/4) = 15/24 = 5/8
(simplifiquei por 3)