Re: Fractions

From: Date: Mon, 09 Dec 2002 23:44:19 +0000
Subject: Re: Fractions
References: 1 2 3  Groups: php.general 
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Well how would you do it on paper? $numerator = 8; $denominator = 12; $factor = 1; //Start at the greater of the 2, and loop down til you find a common factor for ($i=max($numerator,$denominator);$i>1;$i--) { //Check if each number divided by $i has no remainder if (($numerator % $i) == 0 && ($denominator % $i) == 0) { //Factor Found $factor = $i; break; } } //Now a factor is found, divide by it $numerator = $numerator / $factor; $denominator = $denominator / $factor; echo $numerator . '/' . $denominator; The method might look like the above Andrew ----- Original Message ----- From: "Stephen" <webmaster@melchior.us> To: "Ray Hunter" <bigdog@venticon.com> Cc: "PHP List" <php-general@lists.php.net> Sent: Monday, December 09, 2002 11:20 PM Subject: Re: [PHP] Fractions > But how do you find it in PHP? > > > ----- Original Message ----- > From: "Ray Hunter" <bigdog@venticon.com> > To: "Stephen" <webmaster@melchior.us> > Cc: <php-general@lists.php.net> > Sent: Monday, December 09, 2002 6:12 PM > Subject: Re: [PHP] Fractions > > > > Just like math...find the greatest common denominator of the numerator > > and denominator and then divide each (numerator and denominator) by that > > number... > > > > ie: numerator = 8 and denominator = 12 > > > > so we have 8/12 > > > > then greatest common denominator is 4... > > > > so 8/4 = 2 and 12/4 = 3 > > > > thus, 8/12 => 2/3 > > > > > > On Mon, 2002-12-09 at 15:55, Stephen wrote: > > > I know for a fact that you're all going to think, "What the heck does > > > he want fractions for!?" I have a reason...I just won't tell you. :-P > > > > > > My problem is this. I want to simplify a fraction to simplest form but > > > if I divide, I'll get a decimal which I can't use. How could I put it > > > in simplest form without displaying a decimal to the user and if one > > > does come up, a mixed number? > > > Thanks, > > > Stephen Craton > > > http://www.melchior.us > > > > > > "What is a dreamer that cannot persevere?" -- > > > http://www.melchior.us > > > > > > ______________________________________________________________________ > > > > > > -- > > > PHP General Mailing List (http://www.php.net/) > > > To unsubscribe, visit: http://www.php.net/unsub.php > > -- > > > > Ray Hunter > > email: bigdog@venticon.com > > www: http://venticon.com > > > > > > -- > > PHP General Mailing List (http://www.php.net/) > > To unsubscribe, visit: http://www.php.net/unsub.php > > > > > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > >

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