$sum->reduce(); $sum->show(); } public static function multiply(Fraction $a, Fraction $b) { $num = $a->numerator * $b->numerator; $den = $a->denominator * $b->denominator; $sum = new Fraction($num, $den); $sum->reduce(); $sum->show(); } public static function divide(Fraction $a, Fraction $b) { $num = $a->numerator * $b->denominator; $den = $a->denominator * $b->numerator; $sum = new Fraction($num, $den); $sum->reduce(); $sum->show(); } } $a = new Fraction(2, 4); $b = new Fraction(3, 5); Fraction::sum($a, $b); Fraction::subtract($a, $b); Fraction::multiply($a, $b); Fraction::divide($a, $b); $c = new Fraction(46463132, 49649492); $c->show(); $c->reduce(); $c->show(); $c->decimal_fraction();