Answer :
Subtract 1/3 from 9/10.
9/10 - 1/3
Convert to denominators of 30:
27/30 - 10/30
Subtract the numerators:
17/30
So she has to travel 17/30 miles more.
9/10 - 1/3
Convert to denominators of 30:
27/30 - 10/30
Subtract the numerators:
17/30
So she has to travel 17/30 miles more.