#include <iostream>
class NrRational{
    int A;
    int B;
public:
    NrRational(){
        A=0;
        B=0;
    }
    NrRational(int numarator, int numitor){
        A=numarator;
        B=numitor;
    }
    double rat(){
        return (double)A/B;
    }
    NrRational operator+(NrRational numar){
        NrRational rez;
        rez.B = numar.B * B;
        rez.A = numar.B*A + numar.A*B;
        return rez;
    }

};
int main() {
    NrRational x(7,3);
    std::cout<<x.rat()<<std::endl;
    NrRational y(5, 4);
    std::cout<<y.rat()<<std::endl;
    NrRational z;
    z=x+y;
    std::cout<<z.rat();
    return 0;
}