C++ class program to perform rational number arithmetic

 #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();
}

#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(); }