\nthroot{9}{\frac{7^{36}}{y^{54}}}

\nthroot{6}{\frac{x^{6}}{5^{36}}}

\nthroot{7}{\frac{7^{49}}{2^{49}}}

\nthroot{5}{\frac{3^{45}}{y^{20}}}

\nthroot{3}{\frac{7^{6}}{5^{6}}}

\nthroot{6}{\frac{3^{24}}{2^{24}}}

\nthroot{5}{\frac{x^{50}}{2^{20}}}

\nthroot{7}{\frac{3^{28}}{y^{21}}}

\nthroot{9}{\frac{x^{72}}{2^{54}}}

\nthroot{7}{\frac{7^{63}}{5^{35}}}

\nthroot{9}{\frac{3^{9}}{y^{54}}}

\nthroot{3}{\frac{3^{12}}{2^{15}}}

\nthroot{4}{\frac{7^{36}}{5^{20}}}

\nthroot{6}{\frac{7^{12}}{2^{18}}}

\sqrt{\frac{7^{10}}{y^{4}}}

\nthroot{8}{\frac{7^{16}}{2^{72}}}

\nthroot{3}{\frac{x^{30}}{y^{6}}}

\sqrt{\frac{7^{16}}{2^{4}}}

\nthroot{6}{\frac{7^{42}}{y^{60}}}

\nthroot{8}{\frac{3^{24}}{y^{32}}}

\nthroot{7}{\frac{3^{63}}{2^{35}}}

\nthroot{5}{\frac{3^{20}}{5^{30}}}

\nthroot{7}{\frac{x^{21}}{5^{35}}}

\nthroot{3}{\frac{3^{24}}{2^{18}}}