Вычислите: 1) \(\frac{8\sqrt{99}}{\sqrt{11}}\); 2) \(\frac{\sqrt{243}}{6\sqrt{3}}\).

1. \[\frac{8\sqrt{99}}{\sqrt{11}}=8\sqrt{\frac{99}{11}}=8\sqrt{9}=24.\]
2. \[\frac{\sqrt{243}}{6\sqrt{3}}=\frac{9\sqrt{3}}{6\sqrt{3}}=\frac{9}{6}=\frac{3}{2}.\]

Ответ: 1) 24; 2) \(\frac{3}{2}\).