/* find_gcd.c */

/* function prototype */ 
int find_gcd(int n1, int n2); 

/* Subprogram: Reduces a fraction */
void
reduce_fraction(int *nump,  int *denomp) 
{
    int gcd;   

    gcd = find_gcd(*nump, *denomp);
    *nump = *nump / gcd;
    *denomp = *denomp / gcd;
}