To determine what fraction of an hour is represented by 40 minutes, we first need to understand the relationship between minutes and hours. An hour consists of 60 minutes.
To express 40 minutes as a fraction of an hour, we use the following calculation:
Fraction of an hour = (Number of minutes) / (Total minutes in an hour) = 40 minutes / 60 minutes.
This simplifies to:
Fraction of an hour = 40/60 = 2/3.
So, 40 minutes is equal to 2/3 of an hour.