To convert 7 hours and 20 minutes into hours, you simply add the minutes as a fraction of an hour.
Since there are 60 minutes in an hour, you can divide the minutes by 60 to convert them into hours. Then, you add this fraction to the given hours.
7 hours + (20 minutes / 60 minutes per hour) = 7 + (20/60) = 7 + (1/3) = 7.333 hours.
Therefore, 7 hours and 20 minutes is equivalent to 7.333 hours.