Question

Mary has 3/4 litre of orange juice.
She drinks 1/2 litre of it.
How much orange juice does she have left?​

Answer 1

Orange juice left = 3/4 - 1/2
-We have to make the denominator the same for both in order to subtract
And : 3/4 - 2/4 = 1/4

Answer 2

So you have to work out what 3/4 of a litre is, 750ml, then you divide 750 by 2 which is 375ml