Question

7 ч 9 мин − 2 ч 53 мин + 14 ч 48 мин =

Answer 1

Пошаговое объяснение:

7×60=420

2×60=120

14×60=840

429-173+888=1144мин

Answer 2

7*60=420
2*60=120
14*60=840
429-173+888=1144мин

Answer 3

To calculate the sum of the given time durations, you need to add the hours separately and the minutes separately. Let's perform the calculations:

Hours: 7 hours + 14 hours = 21 hours

Minutes: 9 minutes + 48 minutes = 57 minutes

Now we need to adjust the hours if the minutes exceed 60. In this case, 57 minutes is less than 60, so we don't need to adjust the hours.

Therefore, the result is 21 hours and 57 minutes.