class Numeric
  # Converts the number to celsius assuming it is in fahrenheit
  # returns a Float
  def f_to_c
    (self.to_f - 32.0) / 9.0 * 5.0
  end
  
  # Converts the number to fahrenheit assuming it is in celsius
  # returns a Float
  def c_to_f
    self.to_f * 9.0 / 5.0 + 32.0
  end
end