Henry and Bobby are custodians who plan to repaint some classroom bookshelves. Henry has 7 ¼ gallons of green paint and Bobby has 3 24 gallons less green paint than Henry. All of the bookshelves are the same size and each require 16 gallon of paint. How many bookcases will the custodians be able to repaint with that amount of paint?
You really need to learn how to type fractions!
7 1/4 - 3/24 = 58/8 - 1/8 = 57/8
(7 1/4 + 57/8) / (1/6) = 115/8 * 6 = 690/8 = 86.25 shelves