def METHOD_NAME(number: float) -> float:
    """Calculates the fractional part of a number.
    Examples ::
        >>> fract(7345.73472742)
        0.73472742
        >>> fract(1.4215e-15)
        1.4215e-15
    :param number: Number whose fractional part needs to be found out.
    :returns: Fractional part of the number.
    """
    return modf(number)[0]