C Program to Convert Fahrenheit to Celsius

#include<stdio.h>
int main()
{
    float cel, fah;
    printf("Enter temperature in Fahrenheit: ");
    scanf("%f",&fah);

    cel = (fah -32)*5/9;

    printf("%.2f Fahrenheit = %.2f Celsius", fah, cel);

    return 0;
}

Output

Enter temperature in Fahrenheit: 212
212.00 Fahrenheit = 100.00 Celsius