Program to convert the temperature Fahrenheit to celsius

#include<stdio.h>
#include<conio.h>
void main()
{
   float c,f;  /* c for celsius and f for Fahrenheit */
   clrscr();
   print("enter Fahrenheit\n");
   scanf("%f",&f);
   c=f*(f/9-32); 
   (f-32)*5/9;
   printf("\n temperature in celsius of Fahrenheit %.2f is %f", f,c); 
   getch();
}
   output:
   enter Fahrenheit 
   100.34
   temperature in celsius of Fahrenheit 100.34 is 23.744444