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# C++ | Division of numbers

First program will directly calculate the division which is not flexible. So the second program is introduced which will let you enter the numbers from keyboard and calculate the division of it. The later programs are modified forms of second program and lets you add more variables to the program and lets you calculate division of more numbers. The same way you can extend your program. Go enjoy the program. Lets begin……

First program

``````#include<iostream.h>
#include<conio.h>
void main()
{
//clears the screen.
clrscr();
//declare variable type float (answer in point)
float a,b,c;
//The two numbers are declared which makes program non-flexible.
a=12;
b=10;
//calculates division and save them in 'c'
c=a/b;
//show the output c
cout<<"division of two numbers are  "<<c;
//get character
getch();
}
``````

output will be

division of two numbers are 1.2.

Second program

``````#include<iostream.h>
#include<conio.h>
void main()
{
//clear the screen.
clrscr();
//declare variable type float (answer in point)
float a,b,c;
//Input the two numbers and save them in 'a' and 'b'
cout<<"Enter the first no."<<endl;
cin>>a;
cout<<"Enter the second no."<<endl;
cin>>b;
//calculate div and save them in 'c'
c=a/b;
//show the output c
cout<<"div of two numbers are "<<c;
//get character
getch();
}
``````

output will be

Enter the first no.
8
Enter the second no,
2
div of two numbers are 4.

Third program

``````#include<iostream.h>
#include<conio.h>
void main()
{
//clear the screen.
clrscr();
//declare variable type float
float a,b,c,d;
//Input the three numbers and save them in 'a' and 'b' and 'c'.
cout<<"Enter the first no."<<endl;
cin>>a;
cout<<"Enter the second no."<<endl;
cin>>b;
cout<<"Enter the third no."<<endl;
cin>>c;
//calculate div and save them in 'd'
d=(a*b)/c;
//show the output d
cout<<"div of three numbers are "<<d;
//get character
getch();
}
``````

output will be

Enter the first no.
30
Enter the second no.
10
Enter the third no.
10

div of three numbers are 30.

Fourth program

``````#include<iostream.h>
#include<conio.h>
void main()
{
//clear the screen.
clrscr();
//declare variable type float
float a,b,c,d,e;
//Input the four numbers and save them in 'a' , 'b','c' and'd'
cout<<"Enter the first no."<<endl;
cin>>a;
cout<<"Enter the second no."<<endl;
cin>>b;
cout<<"Enter the third no."<<endl;
cin>>c;
cout<<"Enter the fourth no."<<endl;
cin>>d;
//calculate div and save them in 'e'
e=(a*b)/(c*d);
//show the output e
cout<<"div of four numbers are "<<e;
//get character
getch();
}
``````

output will be

Enter the first no.
10
Enter the second no.
20
Enter the third no.
10
Enter the fourth no.
20
div of four numbers are 1.

How does it work.
1. you enter the numbers that are saved in their respective variables.
2. all are calculated and saved in one variable.
3. div is displayed on screen.

Extending it.
You can extend it by adding number of variables and their cout and cin and modifying division variable.

Explanation.
1. Include ‘iostream.h’ and ‘conio.h’ files.