Question 79348
I'll call the peeled banana fruit
fruit + peel = banana
The 2nd part of the problem says
banana = fruit + 7/8 (in ounces)
The 1st part says
peel = (1/8)*banana
You know that 
banana = fruit + peel
so, peel = 7/8 ounce
7/8 = (1/8)*banana
multiply both sides by 8
banana = 7 ounces answer
also note that
peel / banana = 1/8
(7/8) / 7 = 1/8
multiply both sides by 7
7/8 = 7/8