Write a C Program accept two nos from user make addition substraction multiplication division of them and display result

Source code

#include <stdio.h>
#include <conio.h>
void main( )
{
    int nm1;
    float nm2,add,sub,mul,div;
    printf("Enter two numbers: \n");
    scanf("%d %f",&nm1,&nm2);        /* Stores the two interger and floating point numbers entered by user in variable num1 and num2 respectively */
    add = nm1+nm2;  /* Performs addition and stores it */
    sub = nm1-nm2;  /* Performs substraction and stores it */
    mul = nm1*nm2;  /* Performs multiplication and stores it */
    div = nm1/nm2;  /* Performs division and stores it */

    printf("addition is= %f\n",add);
    printf("substraction is= %f\n",sub);
    printf("multiplication is= %f\n",mul);
    printf("division is= %f\n",div);
    getch();
}

Output
Enter two numbers: 20 2.5
addition is= 22.50
substraction is=  17.50
multiplication is= 50.00
division is= 8.00

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