import json


def simplify_fraction(f):
    """
    .. function:: simplify_fraction(Fraction) -> int or float or Fraction

    Takes as input a Fraction and returns the equivalent int or float.
    In the case the int or float cannot be represented, the function returns the Fraction in json format

    Examples:
    >>> simplify_fraction(Fraction(50,1))
    50

    >>> simplify_fraction(Fraction(50,2))
    25

    >>> simplify_fraction(Fraction(55555555294967297,2))
    '[55555555294967297, 2]'
    """
    if f.denominator == 1 and f.numerator < 9223372036854775808:
        return f.numerator
    elif float(f) < 4294967296.0:
        return float(f)
    else:
        return json.dumps([f.numerator, f.denominator])