First, it have to change them so that they have common denominators. You would change the denominators to 6.
Your new fractions are:
4 2/6, 3 3/6, 3 5/6, 4 1/6.
Now you add them all together. When you add all of them, you end up with: 14 11/6. You would have to change this to 15 5/6.
Therefore, his average distance was 15 5/6 ( I think? ).
