Ответ:

  1. \(\frac{2^9\cdot3^9}{6^7}=\frac{6^9}{6^7}=6^2=36\).
  2. \(\frac{18^7}{2^6\cdot9^6}=\frac{(2\cdot9)^7}{2^6\cdot9^6}=2\cdot9=18\).
  3. \(\frac{7^9\cdot5^8}{35^8}=\frac{7^9\cdot5^8}{7^8\cdot5^8}=7\).
  4. \(\frac{2^9\cdot5^{14}}{50^7}=\frac{2^9\cdot5^{14}}{2^7\cdot5^{14}}=2^2=4\).
  5. \(\frac{100^8}{2^{15}\cdot5^{14}}=\frac{2^{16}\cdot5^{16}}{2^{15}\cdot5^{14}}=2\cdot5^2=50\).
  6. \(\frac{45^4}{75^8}=\frac{3^8\cdot5^4}{3^8\cdot5^{16}}=\frac{1}{5^{12}}\).

Ответ: 1) 36; 2) 18; 3) 7; 4) 4; 5) 50; 6) \(\frac{1}{5^{12}}\).