Question

the school day is 6 hours, 15 minutes long. Jenna says that it is 6 1/4 hours long. henry says it is 6.25 hours long. are their statements reasonable? explain

Answer 1

Yes

Explanation:

we all know there is 60 minutes in an hour. So in order to answer this question we need to know the percentage of 15 to 60 which is really really just 15/60=0.25 so Henry's answer is correct:
6.25 Hours are 6 hours and 15 minutes

and 0.25 really is just a quarter because 4 x 0.25 = 1 so in fraction it is 1/4 so Jenny is also correct on :

6 1/4 hours are 6 hours and 15 minutes