Answer- 1 5/6 of the hamburger meat did not get thrown away.
Step-by-step explanation-
1. Turn the mixed numbers into fractions. 6 1/2=13/2
4 2/3= 14/3
2. Subtract. To do this you have to make sure that both fractions have the same denominator (bottom number) I did that by multiplying the bottom numbers by each other, and whatever you do to the top you do to the bottom. So it will turn out to be 39/6 - 28/6 = 11/6 or 1 5/6
