Question

45мин18с+11мин49с=?6мин28с-2мин30с=?13сут16ч+12сут8ч=?1год6мес+2года11мес=?2года4мес-11мес

Answer 1

Ответ:

1)3396 (56 мин 6 с)

2)238 с ( 3 мин 58 сек)

3)  624 ч (26 сут)

4) 53 м ( 4 года 5 мес)                        

5) 17 мес ( 1 год  5 мес)

Пошаговое объяснение:

1) 45*60+18=2718

    11*60+48= 678

    2718 + 678 = 3396

   3396 : 60=56,6 (56 мин 6 сек)

2)  6*60+28=388

     2*60+30=150

      388-150=238

       238: 60 =3, 58 ( 3 мин 58 сек)

3)  13*24+16= 328

     12*24+8=296

     328+296= 624

     624:24= 26

4)  1*12+6=18

   2*12+11=35

  18+35= 53

 53:12= 4,5 (4 года 5 мес)

5)  2*12+4=28

    28-11= 17

   17:12= 1,5 (1 год 5 мес)

Answer 2

Let's solve each of these arithmetic operations step by step:

1. Adding time durations: 45 minutes 18 seconds + 11 minutes 49 seconds To add the minutes and seconds separately: Minutes: 45 + 11 = 56 minutes Seconds: 18 + 49 = 67 seconds (which is more than 60 seconds, so we convert it to minutes and seconds) 67 seconds = 1 minute 7 seconds

   Now, we add the minutes: 56 minutes + 1 minute (from the seconds) = 57 minutes

   So, the result is 57 minutes 7 seconds.

2. Subtracting time durations: 6 minutes 28 seconds - 2 minutes 30 seconds To subtract the minutes and seconds separately: Minutes: 6 - 2 = 4 minutes Seconds: 28 - 30 = -2 seconds (which is less than 0 seconds, so we borrow 1 minute and add 60 seconds)

   60 seconds - 2 seconds = 58 seconds

   Now, we subtract the minutes: 4 minutes - 1 minute (borrowed) = 3 minutes

   So, the result is 3 minutes 58 seconds.

3. Adding time durations in days and hours: 13 days 16 hours + 12 days 8 hours To add the days and hours separately: Days: 13 + 12 = 25 days Hours: 16 + 8 = 24 hours (which is equal to 1 day)

   Now, we add the days: 25 days + 1 day (from the hours) = 26 days

   So, the result is 26 days 0 hours.

4. Adding years and months: 1 year 6 months + 2 years 11 months To add the years and months separately: Years: 1 + 2 = 3 years Months: 6 + 11 = 17 months (which is more than 12 months, so we convert it to years and months) 17 months = 1 year 5 months

   Now, we add the years: 3 years + 1 year (from the months) = 4 years

   So, the result is 4 years 5 months.

5. Subtracting years and months: 2 years 4 months - 11 months To subtract the months: 4 months - 11 months = -7 months (which is less than 0 months, so we borrow 1 year and add 12 months)

   12 months - 7 months = 5 months

   Now, we subtract the years: 2 years - 1 year (borrowed) = 1 year

   So, the result is 1 year 5 months.

Final results:

1. 45 minutes 18 seconds + 11 minutes 49 seconds = 57 minutes 7 seconds.
2. 6 minutes 28 seconds - 2 minutes 30 seconds = 3 minutes 58 seconds.
3. 13 days 16 hours + 12 days 8 hours = 26 days 0 hours.
4. 1 year 6 months + 2 years 11 months = 4 years 5 months.
5. 2 years 4 months - 11 months = 1 year 5 months.