ж) \(\frac{5}{2\sqrt{3}} = \frac{5\cdot \sqrt{3}}{2\sqrt{3} \cdot \sqrt{3}} = \frac{5\sqrt{3}}{2 \cdot 3} = \frac{5\sqrt{3}}{6}\)
Ответ: \(\frac{5\sqrt{3}}{6}\)