Answer:
3/4 mile
Explanation:
This is a subtraction problem.
3 1/4 - 2 2/4
Since you can't take away 2/4 from 1/4, you need to borrow 1 from the 3. That 1 is borrowed as 4/4 and added to the 1/4 changing the 3 1/4 to 2 5/4.
3 1/4 - 2 2/4 = 2 5/4 - 2 2/4 = 3/4
Answer: 3/4 mile