Thread: reducing a fraction

how do i write a function that wil reduce the fraction in the out put ... heres my source code.


#include <stdio.h>

/*global declarations*/
typedef struct
{
int numerator;
int denominator;
} FRACTION;

/*prototype declarations*/
FRACTION getFr (void);
FRACTION multFr (FRACTION fr1, FRACTION fr2);

FRACTION divFr (FRACTION fr1, FRACTION fr2);
FRACTION addFr (FRACTION fr1, FRACTION fr2);


void printFr (FRACTION fr1,
FRACTION fr2,
FRACTION result,
FRACTION conclude,
FRACTION sumup);

int main (void)
{
FRACTION fr1;
FRACTION fr2;
FRACTION res;
FRACTION con;
FRACTION sum;


/*statements*/
fr1 = getFr ();
fr2 = getFr ();
res = multFr (fr1, fr2);
con = divFr (fr1, fr2);
sum = addFr (fr1, fr2);

printFr (fr1, fr2, res,con,sum);



return 0;
}

/*===========getFr==========*/
FRACTION getFr (void)
{
/*local definitions*/
FRACTION fr;

/*statements*/
printf("Write a fraction in the form of x/y: ");
scanf ("%d/%d", &fr.numerator,&fr.denominator);
return fr;
} /*getFraction*/

/*==========multFr==========*/
FRACTION multFr (FRACTION fr1,
FRACTION fr2)
{
/*local variables*/
FRACTION res;


/*statements*/
res.numerator = fr1.numerator * fr2.numerator;
res.denominator = fr1.denominator * fr2.denominator;
return res;

}/*multFr*/

any help would be appreciated ..... thanks

o ok thats simple enough ill give it a try .... thanx

i still cant derive the function .... can u help me get started thanx`

If all your trying to do is manipulate the output so it wont display as many decimals just do:
printf("%5d.%5d",result.numerator,result.denominat or);
or whatever one your trying to print.
Hope this helps