Question

$\frac{7\sqrt{108}-\sqrt{12}}{2\sqrt{75}}$

Answer 1

$\frac{7\sqrt{108}-\sqrt{12}}{2\sqrt{75}}=\frac{7\sqrt{36*3}-\sqrt{4*3}}{2\sqrt{25*3}}=\frac{42\sqrt{3}-2\sqrt{3}}{10\sqrt{3}}=\frac{40\sqrt{3}}{10\sqrt{3}}=4$