// Place your name class time and date here

#include <iostream>

using std::cin;
using std::cout;
using std::endl;

// Missing Prototypes go here! Be sure to remove this comment.

void main()
{
	int Numerator1;
	int Denominator1;
	int Numerator2;
	int Denominator2;
	int NewNumerator;
	int NewDenominator;

	char Slash;		
	char Operator;

	cout << endl << "Fraction Calculator" << endl << endl;
	cout << "Add, subtract, multiply & divide - positive fractions only" << endl;
	cout << "Enter '0/0 + 0/0' to quit." << endl;

	// Input will be assumed to be in correct form for simplification
	// Get the fractions before loop in case they want to exit right away

	cout <<  endl << "> ";

	cin >> Numerator1;
	cin >> Slash;
	cin >> Denominator1;
	cin >> Operator;
	cin >> Numerator2;
	cin >> Slash;
	cin >> Denominator2;

	while (Numerator1 + Denominator1 + Numerator2 + Denominator2 > 0)
	{
		ReduceFraction(Numerator1, Denominator1);
		ReduceFraction(Numerator2, Denominator2);

		switch (Operator) 
		{
			case '+':
				MakeDenominatorsCommon(Numerator1, Denominator1, Numerator2, Denominator2);
				NewNumerator = Numerator1 + Numerator2;
				NewDenominator = Denominator1;
				break;
			case '-':
				MakeDenominatorsCommon(Numerator1, Denominator1, Numerator2, Denominator2);
				NewNumerator = Numerator1 - Numerator2;
				NewDenominator = Denominator1;
				break;
			case '*':
				NewNumerator = Numerator1 * Numerator2;
				NewDenominator = Denominator1 * Denominator2;
				break;
			case '/':
				NewNumerator = Numerator1 * Denominator2;
				NewDenominator = Denominator1 * Numerator2;
				break;
		}

		ReduceFraction(NewNumerator, NewDenominator);

		cout << Numerator1 << "/" << Denominator1 << " " << Operator << " ";
		cout << Numerator2 << "/" << Denominator2 << " = ";
		cout << NewNumerator << "/" << NewDenominator << endl;

		cout <<  endl << "> ";

		cin >> Numerator1;
		cin >> Slash;
		cin >> Denominator1;
		cin >> Operator;
		cin >> Numerator2;
		cin >> Slash;
		cin >> Denominator2;
	}
}


//  Missing functions go here! Be sure to remove this comment.