Question

Subtract 3hour 15min 0 sec from 1hour 45min and 15 second

Answer 1

To subtract 3 hours, 15 minutes, and 0 seconds from 1 hour, 45 minutes, and 15 seconds, we need to align the times.

1. Start with the two times:
- 1 hour, 45 minutes, 15 seconds
- 3 hours, 15 minutes, 0 seconds

2. Subtract the seconds:
- 15 seconds - 0 seconds = 15 seconds

3. Subtract the minutes:
- 45 minutes - 15 minutes = 30 minutes

4. Subtract the hours:
- 1 hour - 3 hours = -2 hours

Now, since we have negative hours, we need to convert some of the minutes back into hours.

1. Convert 1 hour to 60 minutes and add it to 45 minutes:
- 1 hour = 60 minutes
- 60 minutes + 45 minutes = 105 minutes

2. Now subtract the 3 hours and 15 minutes from the total in minutes:
- Convert 3 hours to minutes: 3 hours = 180 minutes
- 180 minutes + 15 minutes = 195 minutes

3. Now perform the subtraction:
- 105 minutes (total minutes) - 195 minutes = -90 minutes

Now, we convert -90 minutes back into hours and minutes:
-90 minutes = -1 hour and -30 minutes

Combining the negative hours and minutes:
-2 hours + (-1 hour) = -3 hours
-30 minutes remain.

Thus, the final result after subtracting is:
**-3 hours, 30 minutes, and 15 seconds**.

This indicates that 3 hours, 15 minutes, and 0 seconds exceeds 1 hour, 45 minutes, and 15 seconds by 3 hours, 30 minutes, and 15 seconds.