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Answer 1

Answer:

$\frac{5\sqrt{3}-3\sqrt{2} }{\sqrt{108}+\sqrt{18} } \\\\\frac{(5\sqrt{3}-3\sqrt{2})(\sqrt{108}-\sqrt{18}) }{(\sqrt{108}+\sqrt{18} )(\sqrt{108}-\sqrt{18}) } \\\\\frac{(5\sqrt{3}-3\sqrt{2})(\sqrt{108}-\sqrt{18}) }{((\sqrt{108})^{2} -(\sqrt{18})^{2} ) } \\\\\frac{(5\sqrt{3}-3\sqrt{2})(\sqrt{108}-\sqrt{18}) }{(108-18 ) } \\\\\frac{(5\sqrt{3}-3\sqrt{2})(\sqrt{108}-\sqrt{18}) }{90 }$