Sasha can walk 6 miles in 3 hours. If she has to walk 1 mile, how long will it take her?

6 Miles in 3 Hours (remember this)

In order to change 6 miles to 1 mile we divide by 6. Now do the same for the 3

3 / 6 = 0.5 hours and 0.5 of a hour is 30 mins

30 mins is your answer

30 mins or 1/2 hour