@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		RationalNumber other = (RationalNumber) obj;
		if (denominator != other.denominator)
			return false;
		if (numerator != other.numerator)
			return false;
		return true;
	}