public class Fraction { 

 int numerator, denominator = 1;

 Fraction(int n) {
   numerator = n;
 }

 Fraction(int n, int d) {
   numerator = n;
   denominator = d;
   normalize();
 }
 

 public int getNumerator() {
   return numerator;
 }

 public int getDenominator() {
   return denominator;
 }
   
 void normalize() {
   int g = gcd(numerator, denominator);
   numerator = numerator/g;
   denominator = denominator/g;
 }
   
 int gcd(int a, int b) {
   if (b == 0) return a;
   else return gcd(b, a%b);
 }

 public String toString() {
   if (denominator != 1) {
     return numerator + "/" + denominator;
   }
   else {
     return "" + numerator;
   }
 }

}