C Language
#include<stdio.h>
#include<conio.h>
void main()
{
float F,C;
clrscr();
printf("Enter temperature in fahrenheit");
scanf("%f",&F);
C=5*(F-32)/9;
printf("Temperature in celcius=%f",C);
getch();
}
/*OUTPUT*/
Enter temperature in fahrenheit 33.0
Temperature in Celcius = 0.550000