분수 합 [백준 1735]

https://www.acmicpc.net/problem/1735

 

 

a,b =map(int,input().split())
c,d =map(int,input().split())
up = (a*d) +(b*c)
down = b*d 

def gcd(a,b):
    while b :
        a,b = b,a%b
    return a 
gcdnum = gcd(up,down) 
up /=gcdnum
down/=gcdnum

print(int(up),int(down))