Thread: float/int numbers understanding.....

im trying to write a temp conv. program from fahr to cel. by using a function , it works but im trying to make it print a number after the decimal and it gets all messed up...

Code:

#include <stdio.h>

#define NEXTSTEP 20


int convertingfunction(int, int);

int main(void)
{
     int c;
     int i;
     
     for(c = 0; c <= 300; c = c + 20)
         printf("%d %3d\n", c, convertingfunction(c,i));
     return 0;
}
int convertingfunction(int whzzup, int hehehe)
{
    int d;
    int c;
    d = 0;


    d = (5.0/9.0) * (whzzup-32);
    return d;
}

this works all right but how do u get it to print numbers after the decimal? i tried changing d into a float as well as c but they all come out messed up.