Question

Alexis washed 31/1/2 windows in 3/4 of an hour. At this rate, how many can she wash per hour?

Answer 1

Explanation:

Just find unit rate per hour: ( I will assume you meant to type 31 1/2)

31 1/2 / (3/4) = 31.5 / .75 widows per hour = 42 windows per hour