N, M, K = gets.split.map(&:to_i)

a = Rational(M, N) * Rational(M - 1, N - K - 1)
b = Rational(N - M, N) * Rational(M, N - K - 1)
c = a + b

ans = [Rational(M, N), c].max

puts [ans.numerator, ans.denominator].join(' ')