egipatski razlomci

#include <stdio.h>
#include <math.h>

float modul(float x, float y) {
    if (fmod(x,y) < 0) return (fmod(x,y) + floor(y));
    return fmod(x,y);
}

void egy(float x, float y) {
    printf("1/%.f", ceil(y/x));
    if (modul(-y,x) != 0.0) {
        printf(" + ");
        egy(modul(-y,x), y*ceil(y/x));
    }
}

int main()
{
    float x, y;
    printf ("Unesite brojilac i imenilac razlomka: ");
    scanf ("%f %f",&x, &y);
    egy(x,y);
    return 0;
}