Python：每日一题 29（答题领鱼币）

zhhmms

#!/usr/bin/env python2
# -*- coding: utf-8 -*-
"""
Created on Sun Apr 16 09:45:31 2017

@author: jerry_xu
"""

def fadd(a,b,c,d):
    fenzi = a*d+b*c
    fenmu = b*d
    GCD = lambda x,y:x if y==0 else GCD(y, x%y)
    gcd = GCD(fenzi,fenmu)
    fenzi /= gcd
    fenmu /= gcd
    return fenzi, fenmu

print '1/6 + 1/3 = %d/%d' % fadd(1,6,1,3)

def fminus(a,b,c,d):
    fenzi = a*d-b*c
    fenmu = b*d
    GCD = lambda x,y:x if y==0 else GCD(y, x%y)
    gcd = GCD(fenzi,fenmu)
    fenzi /= gcd
    fenmu /= gcd
    return fenzi, fenmu

print '1/2 - 1/3 = %d/%d' % fminus(1,2,1,3)