#include <iostream>
#include <math.h>
using namespace std;

int i, a, b;
long double j, ans;
int main()
{
	while (cin >> a >> b)
	{
		ans=1E9;
		for (i=1; i<=b; i++)
		{
			j=(int)((double)i*a/b+0.5);
			if (fabs((double)(j)/i-(double)a/b)<ans)
			{
				ans=fabs((double)(j)/i-(double)a/b);
				cout << j << '/' << i << endl;
			}
		}
		cout << endl;
	}
	return 0;
}