#include <bits/stdc++.h>
using ll = long long;
using std::cin;
using std::cout;
using std::endl;
std::mt19937 rnd(std::chrono::steady_clock::now().time_since_epoch().count());
template <class T>
inline bool chmax(T &a, T b)
{
  if (a < b)
  {
    a = b;
    return 1;
  }
  return 0;
}
template <class T>
inline bool chmin(T &a, T b)
{
  if (a > b)
  {
    a = b;
    return 1;
  }
  return 0;
}
const int inf = (int)1e9 + 7;
const long long INF = 1LL << 60;

void solve()
{
  ll n, m, K;
  cin >> n >> m >> K;
  ll P = m * (m - 1) + (n - m) * m;
  ll Q = n * (n - 1 - K);
  const ll g = std::gcd(P, Q);
  P /= g, Q /= g;
  cout << P << " " << Q << "\n";
}

int main()
{
  std::cin.tie(nullptr);
  std::ios::sync_with_stdio(false);

  int I_love_KKT89 = 1;
  // cin >> I_love_KKT89;
  while (I_love_KKT89--)
    solve();
  return 0;
}