Answer:
The first can that is 4/10 full.
Explanation:
Well half of 8 is 4 and 4/8 is equal to 1/2. So 5/8 in this case is over 1/2. The can that is 4/10 full is less than 1/2 because half of 10 is 5 (5/10), so it is beneath that 1/2 mark.
I hope my explanation was easy to understand because I tried to make it simple.
:) :) :)