Ratio constructor

Ratio(int num, int den)

Implementation

factory Ratio(int num, int den) {
  if (den < 0) {
    num *= -1;
    den *= -1;
  }

  final d = num.gcd(den);
  if (d > 1) {
    num = num ~/ d;
    den = den ~/ d;
  }

  return Ratio._internal(num, den);
}