How do you work the above question?

OK, T, we have to subtract 3/4 from 11/12

If we let the distance he still has to go be D then

D = (11/12 mile) - (3/4 mile)

In order to do this, we have to convert (3/4) to a fraction whose denominator is 12.

(3/4 mile)*(3/3) = (9/12 mile)

So D =(11/12 mile) - (9/12 mile) =

**(2/12 mile) or (1/6 mile)**