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Subtraction of Hours and Minutes

How to subtract hours and minutes.

  • If the number of minutes being subtracted is more than the original minutes, do the following:
    • Subtract 1 from the original number of hours.
    • Increase the number of original minutes by 60.
  • Subtract the minutes.
  • Subtract the hours.

Example: What is 4 hours 11 minutes minus 2 hours 47 minutes.

  • The original number of minutes (11) is less than the 47 minutes being subtracted so:
    • Subtract 1 from the original number of hours. (4 hours - 1 hour = 3 hours)
    • Increase the number of minutes by 60. (11 minutes + 60 minutes = 71 minutes)
  • Subtract the minutes. (71 minutes - 47 minutes = 24 minutes)
  • Subtract the hours. (3 hours - 2 hours = 1 hour)
  • Answer: 1 hour 24 minutes





Practice

Find the Difference in Hours and Minutes

- =

hours and minutes



You have correct and   incorrect.  This is percent correct.

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