It is 1/3 (one third) of an hour.
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1/4 hour1 hour = 60 minutes15 minutes * 1 hour/60 minutes = 1/4 hour
It is: 19/60 of an hour
1 hour = 60 minutes fraction of 1 hour is 35/60 divide by 5 = 7/12
What fraction of 1 h : 35 min is WHAT?
15 minutes is 1/4 of an hour