#include <iostream>
using namespace std;

class Fraction
{	int nume, deno;
	void reduce(Fraction x)
	{
                int n = x.nume;
                int d = x.deno;
                while( d != 0 )
                {
                        int r = n % d;
                        n = d;
                        d = r;
                }
                if ( n != 0 )
                {
                        x.nume /= n;
                        x.deno /= n;
        	}
		if (x.deno < 0)
                {
                        x.nume *= (-1);
                        x.deno *= (-1);
                }
        }
public:
	Fraction() { nume=0;  deno=1;  }
	Fraction(int n, int d) { nume=n; deno=d;  }
	void Set(int n, int d) { nume=n; deno=d;  }
	void Print() const 
	{	cout << nume << "/" << deno;    }
	Fraction operator+(Fraction x)	// p.134
	{	int n, d;	// temp
		d = deno * x.deno;
		n = nume*x.deno + deno*x.nume;
		Fraction ans;
		ans.Set(n, d);
		Fraction::reduce(ans);
		return ans;
	}
        Fraction operator-(Fraction x)  // p.134
        {       int n, d;       // temp
                d = deno * x.deno;
                n = nume*x.deno - deno*x.nume;
                Fraction ans;
                ans.Set(n, d);
		Fraction::reduce(ans);
                return ans;
        }
	Fraction operator* (Fraction x)
	{	int n, d;
		n = nume*x.nume;
		d = deno*x.deno;
		Fraction ans;
		ans.Set(n,d);
		Fraction::reduce(ans);
		return ans;
	}
        Fraction operator/ (Fraction x)
        {       int n, d;
                n = nume*x.deno;
                d = deno*x.nume;  
                Fraction ans;
                ans.Set(n,d);
		Fraction::reduce(ans);
                return ans;  
        }
};

int main()
{	
	Fraction fr1, fr2, fr3;
	int n, d;
	char dummy, op;	

	cin >> n >> dummy >> d;
	fr1.Set(n, d);

	while( cin )
	{	
		cin >> op;
		
		cin >> n >> dummy >> d;
		fr2.Set(n, d);

		
		cout << "\n\n";
		fr1.Print(); 
		cout << " " << op << " ";
		fr2.Print();
	 
		if( op == '+')
		 	fr3 = fr1 + fr2;
		else if( op == '*' )
			fr3 = fr1 * fr2;
		else if ( op == '-' )
			fr3 = fr1 - fr2;
		else if ( op == '/' )
			fr3 = fr1 / fr2;
		else
			cout << "This Will Not Work." << endl;

		cout << " = ";
		fr3.Print();
		cout << endl;
		cout << "\n\n--------------\n\n";
		
        	cin >> n >> dummy >> d;
        	fr1.Set(n, d);
	}

	return 0;
}