from collections import defaultdict
from functools import lru_cache
from sys import flags, stdin
import math
import re
import queue
import typing
import itertools
import bisect
import statistics
import numpy as np
from numpy.core.function_base import _needs_add_docstring
# from numpy.core.numeric import outer
input = stdin.readline
MOD = 1000000007
INF = 122337203685477580


@lru_cache
def solve():
    n, m, k = map(int, input().split())
    p = m*(m-1) + m*(n-m)
    q = (n-k-1)*n
    g = math.gcd(p, q)
    p //= g
    q //= g
    print(p, q)
    return


if __name__ == '__main__':
    solve()