A janitor can clean of a stadium in of an hour. If he continues at this rate, how much of the stadium can he clean per hour?
A baker can decorate of a wedding cake in of an hour. If the baker continues this at rate, how much of the wedding cake can he decorate per hour?
of a stadium in 
of an hour. If he continues at this rate, how much of the stadium can he clean per hour?
of a wedding cake in 
of an hour. If the baker continues this at rate, how much of the wedding cake can he decorate per hour?