#include <iostream>
#include <tchar.h>

using namespace std;


class fraction
{
private:
    int num; //числитель
    int den; //знаменатель
    double des; //десятичная
public:
    int getnum()
    {
        return num;
    }

    int getden()
    {
        return den;
    }

    double getdes()
    {
        return des;
    }

    void setnum(int _num)
    {
        if (_num > 0)
        {
            num = _num;
        }
    }

    void setden(int _den)
    {
        if (_den > 0)
        {
            den = _den;
        }
    }

    void setdes()
    {
        des =(double)  this->num / this->den ;
    }

    void print()
    {
        cout << this->num << '/' << this->den << endl;
    }

    //конструторы

    fraction ()
    {
        num = 0;
        den = 0;
    }

    fraction(int _n)
    {
        num = _n;
        den = 1;
    }

    fraction(int _n, int _d)
    {
        if (_d > 0)
        {
            num = _n;
            den = _d;
        }

    }


    //арифм операторы

    fraction operator*(fraction other)
    {
        int i = this->num * other.num;
        int d = this->den * other.den;
        fraction rez(i,d);
        return rez;
    }

    fraction operator/(fraction other)
    {
        int i = this->num * other.den;
        int d = this->den * other.num;
        fraction rez(i, d);
        return rez;
    }

    fraction operator+(fraction other)
    {

        int tnum = this->num * other.den;
        int onum = other.num * this->den;
        int aden = this->den * other.den;
        int anum = tnum + onum;
        fraction rez(anum , onum);
        return rez;
    }

    fraction operator-(fraction other)
    {
        int tnum = this->num * other.den;
        int onum = other.num * this->den;
        int aden = this->den * other.den;
        int anum = tnum - onum;
        fraction rez(anum , onum);
        return rez;
    }

    //логические операторы

    fraction operator==(fraction other)
    {
        return (this->den == other.den ? (this->num == other.num ? true : false) : false);
    }

    fraction operator!=(fraction other)
    {
        return (this->den != other.den ? (this->num != other.num ? true : false) : false);
    }

    fraction operator>(fraction other)
    {

        return (this->den == other.den ? (this->num == other.num ? true : false) : false);
    }
};




int _tmain(int argc, _TCHAR* argv[])
{

    fraction b(3);
    fraction c(2, 4);
    c.setdes();
    cout << c.getdes() << endl;
    return 0;
}