money_amount.rb

class MoneyAmount
  def initialize(amount_in_cents)
    @fractional = fractional
  end
  
  def euro
    fractional / 100
  end
  
  def cents
    fractional
  end

  def to_s
    "€ #{fractional / 100.00}"
  end
  
  def /(other)
    fractional / other.ceil
  end
  
  def zero?
    fractional.zero?
  end
  
  private
  
  attr_reader :factional
end