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Addition of Hours, Minutes and Seconds | Addition of Time


We’ll talk about right here in regards to the addition of hours, minutes and seconds.
Allow us to take into account among the examples on including time.


Allow us to take into account some examples:

1. Add 3 hr. 25 min. 15 sec. and 5 hr. 20 min. 25 sec.

Adding Time

We added hours, minutes and seconds respectively.

2. Add 5 hr. 45 min. 12 sec. and seven hr. 50 min. 24 sec.

Addition of Hours, Minutes and Seconds

= 12 hr. 1 hr. + 35 min. + 36 sec.

= 13 hr. 35 min. 36 sec.

12 hr. 95 min. 36 sec.

= 12 hr. + (60 min. + 35 min.) + 36 sec.

= 12 hr. 1 hr. + 35 min. + 36 sec.

= 13 hr. 35 min. 36 sec.

3. Add 30 hr. 45 min. 45 sec. and 15 hr. 35 min. 17 sec.

Addition of Hours

= 45 hr. 1 hr. 20 min.  1 min. 11 sec.

= 46 hr. 21 min. 11 sec.

45 hr. 80 min. 71 sec.

= 45 hr. + (60 min. + 20 min.) + (60 sec. + 11 sec.)

= 45 hr. + 1 hr. + 20 min. + 1 min. + 11 sec.

= 46 hr. 21 min. 11 sec.

4. Add 24 hr. 30 min. 20 sec. and 18 hr. 37 min. 54 sec.

Addition of Hours and Minutes

= 42 hr. 1 hr. 7 min. 1 min. 14 sec.

= 43 hr. 8 min. 14 sec.

42 hr. 67 min. 74 sec.

= 42 hr. + (60 min. + 7 min.) + (60 sec. + 14 sec.)

= 42 hr. + 1 hr. + 7 min. + 1 min. + 11 sec. + 14 sec.

= 43 hr. 8 min. 14 sec.


5. Add 5 hours 40 minutes and a pair of hours quarter-hour.

Step I: Add the minutes.

40 + 15 = 55 minutes

Step II: Add the hours

5 + 2 = 7 hours

Addition of Hours and Minutes

Reply: 2 hours quarter-hour.

6. Add 8 hours 35 minutes 40 seconds and 6 hours half-hour and 45 seconds.

Step I: Add the seconds.

40 + 45 = 85 seconds

             = 60
seconds + 25 seconds

             = 1
minute 25 seconds

Step II: Write 25 beneath seconds and carry 1 to minutes.

Step III: Add the minutes.

1 + 35 + 30 = 66 minutes

                  =
66 minutes + 6 minutes

                  = 1 hour 6 minutes

Step IV: Write 6 beneath minutes and carry 1 to hours.

Step V: Add the hours.

1 + 8 + 6 = 15 hours

Write 15 beneath hours.

Addition of Hours, Minutes and Seconds

Reply: 15 hours 6 minutes 25 seconds

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