The problem was actually 3 1/3 - 1 1/2= 10/3-3/2= 20/6-9/6=11/6, or 1 5/6

How did you get 1 and 5/6 from the problem: 3 and 1/3 minus 1 and 2/3

3 1/3 = 2 4/3
- 1 2/3
_____________________
1 2/3

1 2/3 is the answer. Did you maybe copy the problem wrong?