/**
*
*/
public function testLCMArray()
{
$this->assertEquals(2, Utils::lcmArray([1, 2]));
$this->assertEquals(-2, Utils::lcmArray([-1, 2]));
$this->assertEquals(-2, Utils::lcmArray([1, -2]));
$this->assertEquals(2, Utils::lcmArray([-1, -2]));
$this->assertEquals(28, Utils::lcmArray([4, 7]));
$this->assertEquals(8, Utils::lcmArray([4, 8]));
$this->assertEquals(6, Utils::lcmArray([1, 2, 3]));
$this->assertEquals(-6, Utils::lcmArray([-1, 2, 3]));
$this->assertEquals(-6, Utils::lcmArray([1, -2, 3]));
$this->assertEquals(-6, Utils::lcmArray([-1, -2, -3]));
$this->assertEquals(28, Utils::lcmArray([4, 7, 4]));
$this->assertEquals(24, Utils::lcmArray([4, 8, 3]));
}
/**
* Simplify this fraction
*
* @return Fraction
*/
public function simplify()
{
$g = Utils::gcd($this->numerator, $this->denominator);
return new self($this->numerator / $g, $this->denominator / $g);
}