6 6
 1 4
 4 4
 3 3
 6 4
 6 3
 5 4
 5 6
 3 4
 1 3
 3 2
 5 5
 1 1
 2 1
 3 1
 3 5
 1 6
 6 5
 2 3
 4 3
 2 2
 3 6
 1 2
 6 1
 2 5
 4 5
 1 5
 6 2
 4 6
 5 1
 4 1
 5 2
 2 4
 2 6
 5 3

1/6
 1/2
 1/2
 2/3
 1/6
 1/6
 1/3
 1/6
 1/2
 2/3
 2/3
 1/3
 1/1
 5/6
 2/3
 1/3
 1/6
 1/6
 2/3
 1/2
 5/6
 1/6
 5/6
 1/6
 1/3
 1/3
 1/3
 1/6
 1/6
 1/3
 1/2
 1/3
 1/2
 1/6
 1/3


import java.util.Scanner;

public class Die {

    public static void main(String ar[]) {
        Scanner s = new Scanner(System.in);
        int x = s.nextInt();
        int y = s.nextInt();
        double z = y / x;
        if (x == y) {
            System.out.println("1/1");
        } else if (z == 1 / 2) {
            System.out.println("1/2");
        } else if (z == 1 / 3) {
            System.out.println("1/3");
        } else if (z == 1 / 4) {
            System.out.println("1/4");
        } else if (z == 1 / 5) {
            System.out.println("1/5");
        } else if (z == 1 / 6) {
            System.out.println("1/6");
        }

    }

}
