/**
  * Gets the fractional part of the provided amount
  *
  * @param Amount $amount
  *
  * @return string
  */
 protected function getFractionalPart(Amount $amount)
 {
     $number = new Number($amount->getNumber()->getSubunits());
     //if the subunit format is numbers, we want to simply return a fraction
     if ($amount->getSubunitFormat()->getFormat() === SubunitFormat::NUMBERS) {
         return $number->getValue() . '/100';
     }
     $unitName = $this->currencyDictionary->getSubunitName($amount->getCurrency(), !$this->isSingular($number));
     return $this->numberTransformer->toWords($number) . ' ' . $unitName;
 }
 /**
  * Convert given number to words
  *
  * @param Amount $amount
  *
  * @return string
  */
 public function toWords(Amount $amount)
 {
     $this->guardAgainstUnexistingCurrency($amount->getCurrency());
     $unit = $this->toWordsWithGrammarCasedDescription($amount->getNumber(), CurrencyDictionary::getUnits()['PLN']);
     if ($amount->getSubunitFormat()->getFormat() === SubunitFormat::WORDS) {
         $subunit = $this->toWordsWithGrammarCasedDescription(new Number($amount->getNumber()->getSubunits()), CurrencyDictionary::getSubunits()['PLN']);
     } else {
         $subunit = sprintf('%d/100', $amount->getNumber()->getSubunits());
     }
     return $unit . ' ' . $subunit;
 }