Everyone is different. Some people breath deep and therefore take fewer breaths in one hour. People who breath shallow will take more breaths. It also depends on what kind of shape you are in.
There are 60 minutes in one hour.
1 hour = 60 minutes.
One hour is 60 minutes so one and a half hour is 60 + 30=90 minutes
If the question is, How many minutes is one tenth of an hour ? Then,1 hour = 60 minutes1/10 hour = 60/10 = 6 minutes.
There are 20 minutes in one third of an hour.
One third of an hour is 20 minutes.
There are 15 minutes in a quarter hour.
There are 0.0065217391304348 9,200-minutes in one hour.
30 minutes = half an hour, because 60 minutes are one hour.
There are 80 minutes in 1 hour and 20 minutes.
There are 60 minutes in one hour, therefore, one sixth of an hour is equal to 60 / 6 = 10 minutes.
There are 30 minutes in half an hour and 15 minutes in a quarter of an hour