Verified answer

1 litro = 1000 mililitros.

1/2 litro = 1000/2 = 500 mililitros

1/4 litro = 1000/4 = 250 mililitros

1 1/2 litro = 1000 + 500 = 1500 mililitros

3/4 litro = 3·1000/4 = 3000/4 = 750 mililitros

2 3/4 litro = 2000 + 750 = 2750 mililitros

1/8 = 1000/8 = 125 mililitros