165/150 = (150×1+15)/150 = 1 15/150 = 1 1/10
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150
-165
The numbers that go into 165 are: 1,3,5,11,15,33,55,165
So 45 minutes is 3/4 of an hour (60 minutes in an hour, 45/60 simplifies to 3/4). That means the mixed number would be 2 3/4 hours.
Evaluate 15n+19 if n=1/3