Answer:
The fraction ate is 2/3
Explanation:
Here, we want to get the fraction of the total ate
From the question, Joe ate 3 out of 12 pieces;
That would be 3/12
same ate 5 out of 12, that will be 5/12
So the fraction ate will be;
3/12 + 5/12 = 8/12 = 2/3