import java.util.Scanner;
import java.lang.Integer;

public class FractionCalculator
{
	// This program will prompt the user for two fractions
	// and an operation to perform on the fractions.
	public static void main(String [] args)
	{
		Scanner keyboard = new Scanner(System.in);
		
		System.out.print("Please enter a fraction: ");
		String fraction1 = keyboard.nextLine();
		
		int num1 = Integer.parseInt(fraction1.substring(0, fraction1.indexOf("/")));
		int den1 = Integer.parseInt(fraction1.substring(fraction1.indexOf("/")+1));

		System.out.print("Please enter a second fraction: ");
		String fraction2 = keyboard.nextLine();
		
		int num2 = Integer.parseInt(fraction2.substring(0, fraction2.indexOf("/")));
		int den2 = Integer.parseInt(fraction2.substring(fraction2.indexOf("/")+1));

		Fraction f1 = new Fraction(num1, den1);
		Fraction f2 = new Fraction(num2, den2);
		
		Fraction sum = f1.add(f2);
		Fraction difference = f1.subtract(f2);
		Fraction product = f1.multiply(f2);
		Fraction quotient = f1.divide(f2);

		System.out.println("The sum is: " + sum.getNumerator() + "/" + sum.getDenominator());
		System.out.println("The difference is: " + difference.getNumerator() + "/" + difference.getDenominator());
		System.out.println("The product is: " + product.getNumerator() + "/" + product.getDenominator());
		System.out.println("The quotient is: " + quotient.getNumerator() + "/" + quotient.getDenominator());
				
	}
	
}