Question

a leaky water glass has 4/6 liters of water and after two hours it has only 2/5 liters of water left. what was the change in the amount of water in the glass?

Answer 1

Initial amount of water is 4/6
final amount is 2/5

difference is equal to the change in amount of water
thus 4/6-2/5

taking LCM 30

20-12/30
8/30

thus difference is 8/30 or 4/15