45 minutes
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45 minutes is 3/4 of an hour. 45/60 = 3/4
One hour is 60 minutes. A quarter of an hour is 60 minutes/4 = 60/4 minutes = 15 minutes. Three quarters of an hour = 3*a quarter of an hour = 3*15 minutes = 45 minutes.
3/4
There are 60 minutes in an hour so 45 minutes is 45/60 = 3/4 of an hour.
2 and 3/4 hours 2.75 hours