fraction.cpp

#include <iostream>
using namespace std;

class Fraction
{
    private:
        double p, q;
    public:
        Fraction(double a = 0, double b = 1){p=a; q=b;};
        void print(){cout<<p<<"/"<<q;};
        Fraction sum(Fraction f){return Fraction(p*f.q+f.p*q, q*f.q);};
        Fraction sum(double d){return sum(Fraction(d, 1));};
        Fraction operator+(Fraction f){return sum(f);};
        Fraction operator+(double d){return sum(d);};
        Fraction operator=(const Fraction & f){p = f.p; q = f.q;};
        void setP(double value){p=value;};
        void setQ(double value){q=value;};
        double getP(){return p;};
        double getQ(){return q;};
};

int main()
{
    Fraction a(2,5), b(3,8);
    cout << "a = "; a.print(); cout << endl;
    cout << "b = "; b.print(); cout << endl;
    double num(5);
    cout << "num = " << num << endl;
    Fraction c = a.sum(b);
    Fraction d = a + b;
    Fraction e = c + num;
    cout << " c = a.sum(b) = "; a.print(); cout << " + "; b.print(); cout << " = "; c.print(); cout << endl;
    cout << " d = a + b = "; a.print(); cout << " + "; b.print(); cout << " = "; d.print(); cout << endl;
    cout << " e = c + num = "; c.print(); cout << " + " << num << " = "; e.print(); cout << endl;
}