Risa ( 2/3 Hours )

Question

Kerri ( 1 1/2 Hours)
Risa finished her workout just as kerri started hers. How long did it take from the time Risa started until Kerri finished?

Answer 1

2/3 + 1 1/2

4/6 + 9/6 = 13/6 = 2 1/6 hours