/// <summary>
/// Get the minimum fraction
/// </summary>
/// <param name="num">The numerator</param>
/// <param name="den">The denominator</param>
private void GetMinFraction(ref long num, ref long den)
{
FactorFinder f1 = new FactorFinder(num),
f2 = new FactorFinder(den);
f1.Find(true);
f2.Find(true);
double val = 1;
foreach (var v in f1.Factors.Intersect(f2.Factors))
{
val *= v;
}
num = (int)((double)num / val);
den = (int)((double)den / val);
}