Question 270098
Hello, 
Here's a hint when adding and subtracting fractions. (Both denominators need to be the same)
8 4/5-1 1/3 Getting these denominators the same will be:
8 12/15 - 1 5/15=
7 7/15 feet. 
Make sense?
RJ
There is a book that might help:
www.math-unlock.com