operator / method

@override Decimal operator /(Decimal other)

Division, may return Rational if not exact decimal
Examples:

• Decimal.parse("10") / Decimal.parse("4") -> "2.5"
• Decimal.parse("1") / Decimal.parse("3") -> "1/3" (Rational representation)
• Decimal.parse("2") / Decimal.parse("6") -> "1/3" (Rational representation)
• Decimal.parse("1") / Decimal.parse("8") -> "0.125"
• Decimal.parse("1") / Decimal.parse("0") -> throws ArgumentError

Implementation

@override
operator /(Decimal other) {
  if (other == Decimal.zero) {
    throw ArgumentError('Divided by zero');
  }

  final otherRational = other.toRational();

  final newNumerator = _numerator * otherRational._denominator;
  final newDenominator = _denominator * otherRational._numerator;
  return Decimal.fraction(newNumerator, newDenominator);
}