// Fraction class
// Lecture example of a simple class with data and methods 

public class Fraction {

	// fraction data
	//           numerator
	//          -----------
	//          denominator 
	int numerator;
	int denominator; 
	
	
	// Constructor 
	public Fraction(int n, int d) {
		numerator 	= n;
		denominator = d;
	}
	
	// display the fraction as a string
	public String toString(){
		String output;
		output = "(" + numerator + " / " + denominator + ")";
		return output;
	}
	
	// scale numerator and denominator by 
	public void multipleBy(int m) {
		numerator 	= m * numerator;
		denominator = m * denominator;
	}
	
	
	
	// add fractions and assume both fractions have same denominator 
	public Fraction add(Fraction f2) {
		int newNumerator = numerator + f2.numerator;
		Fraction result = new Fraction(newNumerator, denominator);
		return result;
		
	}
	
	
}