How to simplify fractions?

Question

How to simplify a fraction in C#? For example, given 1 11/6, I need it simplified to 2 5/6.

Answer 1

int num = 11;
int denom = 6;
int unit = 1;
while (num >= denom)
{
  num -= denom;
  unit++;
}

Sorry I didn't fully understand that part about keeping track of the unit values.