Question

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

Answer 1

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