/**
* Reduce all fractions in this collection with a same denominator
*
* @return FractionCollection
*/
public function simplify()
{
$simple_fractions = [];
$denominators = [];
// Simplify each fraction before
foreach ($this->fractions as $fraction) {
$new_fraction = $fraction->simplify();
$simple_fractions[] = $new_fraction;
$denominators[] = $new_fraction->denominator;
}
// Find lcm denominator
$denominator = Utils::lcmArray($denominators);
$buffer = new self();
foreach ($simple_fractions as $fraction) {
// Set the fraction with found $denominator
$new_fraction = new Fraction($fraction->numerator * $denominator / $fraction->denominator, $denominator);
$buffer->addFraction($new_fraction);
}
return $buffer;
}
