Question

21 год 15 хв - 12 год 35 хв

Answer 1

Решение етого выражения  9 год 20 хв

Answer 2

21 год 15 минут минус 12 годов 35 минут равно 8 годам 40 минутам.

Calculation:

To calculate the difference between two time durations, we subtract the smaller duration from the larger duration. In this case, we have: - 21 years 15 minutes - 12 years 35 minutes

Subtracting 12 years 35 minutes from 21 years 15 minutes, we get: - 21 years - 12 years = 9 years - 15 minutes - 35 minutes = -20 minutes

Since we have a negative value for the minutes, we need to borrow 1 hour from the years. Since there are 60 minutes in an hour, we add 60 minutes to the negative 20 minutes, resulting in 40 minutes.

Therefore, the difference between 21 years 15 minutes and 12 years 35 minutes is 8 years 40 minutes.

Note: Please note that the calculation assumes that each year has 365 days and each day has 24 hours.