Ответ:

1) \(\frac{(6\sqrt{3})^2}{300}=\frac{36\cdot3}{300}=\frac{108}{300}=\frac{9}{25}\).

2) \(\frac{\sqrt{125}}{\sqrt{7}}=\sqrt{\frac{125}{7}}=\frac{5\sqrt{35}}{7}\).

Ответ: 1) \(\frac{9}{25}\); 2) \(\frac{5\sqrt{35}}{7}\).