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public class ProperRational : Rational
{
	private int whole;

	public ProperRational() : base()	// Constructor if no input values are used.
	{
		whole = 0;
	}

	// Normal constructor.
	public ProperRational(int whl, int num, int denom) : base(num, denom)
	{
		whole = whl;
	}

	public void SetProperRational(int whl, int num, int denom)
	{
		whole = whl;
		numerator = num;
		denominator = denom;
		Reduce(this);
	}

	protected void Reduce(ProperRational myRational)
	{
		base.Reduce(this);

		int sign;
		sign = this.RemoveSign();

		this.whole = this.whole + (this.numerator / this.denominator);	// Integer math
		this.numerator = this.numerator % this.denominator;

		this.AddSign(sign);

	} // end Reduce

	public static ProperRational operator + (ProperRational One, ProperRational Two)
	{
		ProperRational Pr = new ProperRational();
		Pr.AddProperRational(One, Two);
		return Pr;
	}

	public void AddProperRational(ProperRational One, ProperRational Two)
	{
		int sign;
		// First rational.  Remove the sign, convert to an improper rational,
		// then put the sign back.
		sign = One.RemoveSign();
		One.numerator = One.numerator + One.whole * One.denominator;
		One.whole = 0;
		One.AddSign(sign);

		// Second rational.  Remove the sign, convert to an improper rational,
		// then put the sign back.
		sign = Two.RemoveSign();
		Two.numerator = Two.numerator + Two.whole * Two.denominator;
		Two.whole = 0;
		Two.AddSign(sign);

		// Add the improper rationals.
		base.AddRational(One, Two);

		// Convert back to a proper rational.
		Reduce(One);
		Reduce(Two);
		Reduce(this);
	}

	public static ProperRational operator - (ProperRational One, ProperRational Two)
	{
		//Insert your code here.
	}

	public void SubProperRational(ProperRational One, ProperRational Two)
	{
		//Insert your code here.
	}

	public static ProperRational operator * (ProperRational One, ProperRational Two)
	{
		//Insert your code here.
	}

	public void MulProperRational(ProperRational One, ProperRational Two)
	{
		//Insert your code here.
	}

	public static ProperRational operator / (ProperRational One, ProperRational Two)
	{
		//Insert your code here.
	}

	public void DivProperRational(ProperRational One, ProperRational Two)
	{
		//Insert your code here.
	}

	public string StringProperRational()
	{
		//Insert your code here.
	}

	public double DoubleProperRational()
	{
		//Insert your code here.
	}

	public int Whole
	{
		get
		{
			return whole;
		}
	}

	private int RemoveSign()
	{	// Temporarily take the sign out of the rational.
		int sign = 1;	//1 = positive, -1 = negative
		if ((this.whole != 0) && (this.numerator != 0)
			&& (Math.Abs(this.whole * this.numerator) != (this.whole * this.numerator)))
			sign = -1;
		if ((this.whole == 0) && (Math.Abs(this.numerator) != this.numerator))
			sign = -1;
		if ((this.numerator == 0) && (Math.Abs(this.whole) != this.whole))
			sign = -1;
		this.whole = Math.Abs(this.whole);
		this.numerator = Math.Abs(this.numerator);

		return sign;
	}

	private void AddSign(int sign)
	{	// Put the sign back onto the rational.
		if (this.whole !=0)
			this.whole *= sign;
		else
			this.numerator *= sign;
	}

}