class Fraction(object):
    def __init__(self, num, den):
        self.num = num
        self.den = den
    def __str__(self):
        return str(self.num) + "/" + str(self.den)
    def numericValue(self):
        return float(self.num)/self.den
    def simplify(self):
        num = abs(self.num)
        den = abs(self.den)
        gcd = min(num, den)
        while gcd >= 1:
            if num % gcd == 0 and den % gcd == 0:
                break
            else:
                gcd -= 1
        self.num = self.num / gcd
        self.den = self.den / gcd
    def __add__(self, other):
        f = Fraction(self.num * other.den + self.den * other.num, self.den * other.den)
        # f.simplify()
        return f