To convert time to just hours:2 hours is 2 hours * (1 hour/ 1 hour) = 2 hours45 minutes is 45 minutes * (1 hour / 60 minutes) = 45/60 hours = 0.75 hours45 seconds is 45 seconds * (1 hour / 3600 seconds) = 45/3600 hours = 0.0125 hoursAdding them all together we have 2 hours + 0.75 hours + 0.0125 hours = 2.7625 hoursTo convert time to just minutes:2 hours is 2 hours * (60 minutes / 1 hour) = 2 * 60 minutes = 120 minutes45 minutes is 45 minutes * (1 minute / 1 minute) = 45 * 1 minutes = 45 minutes45 seconds is 45 seconds * (1 minute / 60 seconds) = 45/60 minutes = 0.75 minutesAdding them all together we have 120 minutes + 45 minutes + 0.75 minutes = 165.75 minutesTo convert time to just seconds:2 hours is 2 hours * (3600 seconds / 1 hour) = 2 * 3600 seconds = 7200 seconds45 minutes is 45 minutes * (60 seconds / 1 minute) = 45 * 60 seconds = 2700 seconds45 seconds is 45 seconds * (1 second / 1 second) = 45 * 1 seconds = 45 secondsAdding them all together we have 7200 seconds + 2700 seconds + 45 seconds = 9945 seconds