1 Mile in distance from the campsite to the pond.
If there are 4 squares that seperate the campsite from the pond, that is 1/4's a mile each.
1/4 + 1/4 + 1/4 + 1/4 = 4/4 (1 mile.)
You add the numerators together (In this case the numerator is the 1).
You do NOT add the denominators together (And in this case the denominator is 4).
I hope this helps!