It takes Marty 1 1/4 hours to get ready for school. If 1/5 of that time is used to shower, what fraction of an hour does it take him to shower?
To find the fraction of an hour it takes Marty to shower, we first need to determine the total time it takes him to get ready for school (1 1/4 hours).
1 1/4 hours can be written as 5/4 hours.
Next, we need to calculate 1/5 of that total time to determine the time spent showering.
To find 1/5 of a value, we divide that value by 5.
So, (5/4) ÷ 5 = 1/4.
Therefore, Marty takes 1/4 of an hour (15 minutes) to shower.