A quarter hour.
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0.25 = 1/4 1 hour = 60 minutes 1/4 hour = 15 minutes 1 and 1/4 hour = 75 minutes
4
1/4 of an hour is 15mins.
1 hour = 60 minutes → 1 4/5 hour = 1 4/5 × 60 minutes = (1×5+4)/5 × 60 minutes = 9/5 × 60 minutes = 108 minutes.
1 hour and 15 minutes in fraction = 1 1/4 hours or 5/4 hours1 hour = 60 minutes15 minutes = 15/60 = 1/4 hourthus, 1 hour and 15 minutes = 1 1/4 hours or 5/4 hours