def gcd(n,m) :
    temp = [n,m]
    n = max(temp)
    m = min(temp)
    if m==0 :
        return n
    return gcd(m,n%m)

def lcm(n,m) :
    return n*m//gcd(n,m)

a,b = map(int,input().split())
c,d = map(int,input().split())
denom = lcm(b,d)
num = a*(denom//b) + c*(denom//d)

factor = gcd(num, denom)
print(num//factor, denom//factor)