Respostas

2014-09-03T13:53:41-03:00
3/4 de 1L = 3/4L 

metade de 3/4 é 3/4 / 1/2 = 3/4 x 2/1 = 6/4 = 3/2L

1 L --- 1000 mL
3/2 L --- x mL

3000/2 = x
x = 1500 mL
1 5 1