Question

George has 9/10 of a cup of milk. He uses 1/2 of that amount. How much does he have left to drink?

Answer 1

The book gave the answer of 2/5. But that can't be right. 9/10 must be right.

Answer 2

2/5 is the answer if you start with 9/10 and then drink half a full glass
9/10-1/2=2/5

Answer 3

wait that is incorrect

Answer 4

9/20 is the right answer

Answer 5

though that is not the original question

Answer 6

the answer to the above question is 9/20...I'm just pointing out what the question was probably trying to ask

Answer 7

indeed :)