Finding Date of Birth given age in months

Question

I'm really stuck with calculating date of birth given a persons age in months. Currently, I'm using C# to do that. However, failed to understand the logic. Thanks in advance

Answer 1

DateTime has perfect method to substract (actually add negative value) months from current date. For example:

int ageInMonths = 18;
DateTime dt = DateTime.Today;
DateTime DateOfBirth = dt.AddMonths(-ageInMonths);