<?php
class Fraction {
   private $numerator=0;
   private $denominator=1;
   function _construct() {
     $this->numerator=0;
     $this->$denominator=1;
   } //constructor
   function setValue($num,$denom) {
     if($denom !=0) { 
	   $this->denominator=$denom;
	   $this->numerator=$num;
	 }
   } //constructor0
   function setNumerator($num) {
     $this->numerator=$num;
   } //setNumerator
   function setDenominator($denom) {
    if($denom !=0)  $this->denominator=$denom;
   } //setDenominator 
   function getNumerator() {
     return $this->numerator;
   } //getNumerator
   function getDenominator() {
     return $this->denominator;
   } //getDenominator 
   function toDecimal() {
     return 1.0*$this->numerator/$this->denominator;
   }//toDecimal
   function toString() {
     return $this->numerator."/".$this->denominator;
   } //display
   function _destruct() {
    
   } //destruct
} //Fraction
?>