#include <iostream>
#include <iomanip>

using namespace std;

class Rational
{
private:
    void reduce()
    {
		int temp = num;
		num = num/gcd(num,denom);
       denom = denom/gcd(temp,denom);
    }
  //numerator variable
    int num;
    //denominator variable
    int denom;

    int gcd(int n, int d)
    {
        if ( n % d == 0 ) // base case
            return d;
        else
            return gcd(d, n % d);
    }

public:
    Rational(int n, int d)
    {
        num = n;
        denom = d;
        reduce();
    }

	friend ostream & operator<<(ostream &out, const Rational &obj)
	{
		out << "[" << obj.num << "/" << obj.denom << "]";
		return out;
	}
};



int main()
{
    int num = 0;
    int denom = 1;
    int gcd;

    cout << "Enter a numerator. \n";
    cin >> num;
    cout << "\nEnter a denominator. \n";
    cin >> denom;

    Rational fraction(num, denom);



    cout << fraction << endl;

    return 0;



}