5:02:03 - 4:59:59
Understand the Problem
The question is asking to subtract two times given in the format hours:minutes:seconds. We need to subtract 4 hours 59 minutes and 59 seconds from 5 hours 2 minutes and 3 seconds.
Answer
0:02:04
Answer for screen readers
0:02:04
Steps to Solve
- Set up the subtraction
Write the problem vertically, aligning hours, minutes, and seconds:
5:02:03
- 4:59:59
- Borrow from minutes to subtract seconds
Since 3 seconds is less than 59 seconds, we need to borrow. Borrow 1 minute from the minutes column (2 minutes), which is equal to 60 seconds. Add these 60 seconds to the 3 seconds, making it 63 seconds. The minutes column is now 1 minute.
5:01:63
- 4:59:59
- Subtract the seconds
Subtract the seconds: $63 - 59 = 4$ seconds.
5:01:63
- 4:59:59
4
- Borrow from hours to subtract minutes
Since 1 minute is less than 59 minutes, we need to borrow again. Borrow 1 hour from the hours column (5 hours), which is equal to 60 minutes. Add these 60 minutes to the 1 minute, making it 61 minutes. The hours column is now 4 hours.
4:61:63
- 4:59:59
- Subtract the minutes
Subtract the minutes: $61 - 59 = 2$ minutes.
4:61:63
- 4:59:59
2:04
- Subtract the hours
Subtract the hours: $4 - 4 = 0$ hours.
4:61:63
- 4:59:59
0:02:04
0:02:04
More Information
The result of subtracting 4 hours 59 minutes 59 seconds from 5 hours 2 minutes 3 seconds is 2 minutes and 4 seconds.
Tips
A common mistake is forgetting to borrow from the minutes and hours when the seconds or minutes being subtracted are larger than the original values. Also, forgetting that you've borrowed a value when continuing the subtraction.
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