#include <iostream>
using namespace std;
short a,b,c,d;
int main()
{
	cin >> a >> b >> c >> d;
	int e,f,g;
	g = b * d;
	f = a * g / b + c * g / d;
	e = f / g;
	f -= e * g;
	for (int i = 2;i < 1000;i++)
	{
		if (f % i == 0 && g % i == 0)
		{
			while (f % i == 0 && g % i == 0)
			{
				f /= i;
				g /= i;
			}
		}
	}
	if (f + e * g < g)
		cout << a << '/' << b << '+' << c << '/' << d << '=' << f << '/' << g;
	else
		cout << a << '/' << b << '+' << c << '/' << d << '=' << e << '+' << f << '/' << g;
	return 0;
}