whats the dfraction

Question

Calvin cleans \dfrac35 5 3 start fraction, 3, divided by, 5, end fraction of his bathroom with \dfrac13 3 1 start fraction, 1, divided by, 3, end fraction of a bottle of cleaning solution. At this rate, what fraction of the bottle of cleaning solution will Calvin use to clean his entire bathroom?

Answer 1

3/5 of the bottle cleans 1/3 of the bathroom

3/5*3 clean the 1/3*3 = 1 entire bathroom

9/5 = 1 and 4/5 bottle is needed to get the job done