#include<stdio.h>   
 #include<iostream.h>
 #include<conio.h>
 class rational 
 {
   int numer;
   int denom;
   public:
   void getdata()
   {
     cout<<"\n enter the numerator part of the rational no.";
     cin>>numer;
     cout<<"\n enter the denominator part of the rational no.";
     cin>>denom;
   }
   void operator+(rational);
   void operator-(rational);
   void operator *(rational);
   void operator /(rational);
 };
 void rational ::operator+(rational c1)
 {
   rational temp;
   temp.numer=(numer*c1.denom)+(c1.numer*denom);
   temp.denom=denom*c1.denom;
   cout<<"\nrational no. after addition";
   cout<<"\n numerator="<<temp.numer<<"\n denominator ="<<temp.denom;
 }
 void raional ::operator -(rational c1)
 {
   rational temp;
   temp.numer=(numer*c1.denom)-(c1.numer*denom);
   temp.denom=denom*c1.denom;
   cout<<"\n rational no. after subtraction";
   cout<<"\n numerator="<<temp.numer<,"\n denominator ="<<temp.denom;
 }
 void rational ::operator (rational c1)
 {
   rational temp;
   temp.numer=numer*c1.numer;
   temp.denom=denom*c1.denom;
   cout<<"\n rational no. after multiplication";
   cout <<"\n numerator="<temp.numer<<"\n denominator ="<< temp.denom;
 }
 void rational :: operator /(rational c1)
 {
   rational temp;
   temp.numer= numer*c1.denom;
   temp.denom=c1.numer*denom;
   cout<<"\n rational no. after dividation";
   cout <<"\n numerator="<<temp.numer<<"\n denominator ="<<temp.denom;
 }
 void main()
 { 
   clrscr();
   rational c1, c2;
   int n;
   do 
   {
     cout<<"\n 1.Input data for rational no. ";
     cout<<"\n 2. Addition of rational no. "; 
     cout<<"\n 3. Subtraction of rational no. ";
     cout<<"\n 4. Multiplication of rational no.";
     cout<<\n  5. Division of rational no. ";
     cout<<"\n 6. Quit";
     cout<<"\n Enter your choice";
     cin>>n;
     switch(n)
     {
       case 1:
       cout<<endl<<"\n enter the data for first rational no.";
       c1.getdata();
       cout<<endl<<"\n enter the data for second rational no. ";
       c2.getdata ();
       clrscr();
       break;
       case 2;
       c1+c2;
       getch();
       clrscr();
       break;
       case 3;
       c1-c2;
       getch();
       clrscr();
       case 4: 
       c1*c2;
       getch();
       clrscr();
       break;
       case 5:
       c1/c2;
       getch();
       clrscr();
       break;
       case 6:
       exit(1);
       break;
     }
   } while (n!=6);
   getch();
 }