Answer:
1 3/10 (SORRY IF ThIS IS WRONG)
Explanation:
3/4 mile x 6 = 4 1/2
(we multiply by 6 because to get 60 minutes/1 hour you need to multiply 10 minutes by 6)
60/15=4
(we will multiply by 4 because we need that to get 1 hour)
4/5 x 4 = 3 1/5
4 1/2 - 3 1/5 = 4 5/10 - 3 2/10 (we do that so we can subtract easier)
4 5/10 - 3 2/10 = 1 3/10