Question

Please look at the picture for the question

Answer 1

3/4 pizza is wasted

Explanation:

2 3/4 is the same as 2 9/12

3 10/12 + 2 9/12 = 5 19/12

5 19/12 is reduced to 6 3/12, which is also reduced to 6 1/4

7 - 6 1/4 = 3/4 or 9/12