Respostas

2014-07-29T13:46:37-03:00
1 - 2/5 - 1/2*(1 - 2/5)

Tirando mmc:

10/10 - 4/10 - 5/10*(10/10 - 4/10) --->

10/10 - 4/10 - 3/10 ---->

Resposta: 3/10

1 5 1