Besoin d'aide merci d'avance :)

1.
[tex]\frac{2\sqrt{3}}{3\sqrt{2}}=\frac{2\sqrt{3}\sqrt{2}}{3\sqrt{2}\sqrt{2}}=\frac{\sqrt{6}}{3} [/tex]

2.
[tex]\frac{15\sqrt{20}}{5\sqrt{10}}=\frac{3*5\sqrt{10}\sqrt{2} }{5\sqrt{10}}=3\sqrt{2} [/tex]

3.
[tex]\frac{-3\sqrt{10}}{9\sqrt{14}}=\frac{-\sqrt{5}}{3\sqrt{7}}=\frac{-\sqrt{35}}{21} [/tex]

4.
[tex] \frac{-7\sqrt{6}}{7\sqrt{14}}=\frac{- \sqrt{3}}{\sqrt{7}}=\frac{-\sqrt{21}}{7} [/tex]

5.
[tex] \frac{\sqrt{3}}{2\sqrt{30}}=\frac{1}{2\sqrt{10}}=\frac{\sqrt{10}}{20} [/tex]