#include<iostream.h>
#include<conio.h>
class rational
{
 int num,den;
 public:
	friend rational operator+(rational,rational);
	friend istream & operator >>(istream &,rational &);
	friend ostream & operator <<(ostream &,rational &);
};
rational operator+(rational a,rational b)
{
 rational temp;
 temp.num=a.num+b.num;
 temp.den=a.den+b.den;
 return temp;
}
istream &operator >>(istream &din,rational &a)
{
 din>>a.num>>a.den;
}
ostream & operator<<(ostream &dout,rational &a)
{
 dout<<a.num<<"/"<<a.den;
}
void main()
{
 clrscr();
 rational a,b;
 cout<<"Enter first rational number:";
 cin>>a;
 cout<<"Enter second rational number:";
 cin>>b;
 cout<<"First number is "<<a;
 cout<<"\nSecond number is "<<b;
 cout<<"\nThe sum is"<<a+b;
 getch();
}