using namespace std; #include #include class Rational{ private: int p; int q; void validate(); public: Rational(); //Default Constructor Rational (int r); //Overload Constructor with one argument Rational (int x, int y); //Overload Constructor with two argument void read(); //read value from user void show(); //Display to user Rational operator + (Rational r); Rational operator - (Rational r); Rational operator * (Rational r); Rational operator / (Rational r); //Overloading cin operator friend istream& operator >> (istream& in, Rational &r ); //Overloading out operator friend ostream& operator << (ostream& out, Rational &r ); }; void Rational :: validate(){ if (q==0){ cout<<"Error: Invalid Rational Number\n"; exit(-1); // terminate program } } //Default Constructor Rational :: Rational(){ p = 0; q = 1; } Rational :: Rational (int r){ p = q = r; //validate validate(); } Rational :: Rational (int x, int y){ p = x; q = y; //validate validate(); } void Rational :: read(){ cout<<"Enter neuminator: ";cin>>p; cout<<"Enter denominator: ";cin>>q; //validate validate(); } void Rational :: show (){ cout<> (istream& in, Rational &r ){ cout<<"Enter neuminator: ";in>>r.p; cout<<"Enter denominator: ";in>>r.q; //validate r.validate(); return (in); } ostream& operator << (ostream& out, Rational &r ){ out<>r1 cout<<"Enter Second Rational No:\n"; r2.read(); r3 = r1 + r2; cout<<"Sum = ";r3.show();cout<

rational