Answer:
that would be 45 minutes
Explanation:
take an hour, which is 60 minutes and 3/4 of an hour is 45
Divide 60 by 4, which will give you the answer for 1/4 of an hour (aka one quarter) Then you'd take that (which is 15) and multiply it 3 times, thus giving you 45.
Equation style:
60/4=15
15 x 3= 45