#coding:utf-8

'''

filename: addfractions.py

'''

def gcd(a, b):

if not a > b:

a, b = b, a

while b != 0:

remainder = a % b

a, b = b, remainder

return a

def lcm(a, b):

return (a * b) / gcd(a,b)

class Fraction:

def __init__(self, number, denom=1):

self.number = number

self.denom = denom

def __str__(self):

return str(self.number) + '/' + str(self.denom)

__repr__ = __str__

def __add__(self, other):

lcm_num = lcm(self.denom, other.denom)

number_sum = (lcm_num / self.denom * self.number) + (lcm_num / other.denom * other.number)

return Fraction(number_sum, lcm_num)

if __name__ == "__main__":

m = Fraction(1, 3)

n = Fraction(1, 2)

s = m + n

print(m,"+",n,"=",s)