Alm. beregning

  Hej

Jeg har lidt problemer med at få beregnet en tilfældig alder af følgende udtryk:

- Current_year (Enter the current year).

-Current_month (Enter the current month).

-Current _age (Enter your current age in years).

-Month_born (Enter the month in which you were born (a number from 1 to 12).

-Year_another (Enter the year for which you wish to know your age).

-Month_another (Enter the month in this year).

Dvs. mit program kan fx. se ud på følgende måde:

Enter the current year:
2009
Enter the current month (a number from 1 to 12):
9
Enter your current age in years:
35
Enter the month in which you were born (a number from 1 to 12):
8
Enter the year for which you wish to know your age:
2020
Enter the month in this year:
6
Your age in 6/2020: 45 years and 10 months.

- Jeg forstår ikke hvordan ligningen kan se ud ved brug af ovenstående udtryk der skal beregne alderen.