\nthroot{6}{\frac{x^{42}}{2^{30}}}

\nthroot{7}{\frac{x^{56}}{5^{28}}}

\sqrt{\frac{3^{14}}{y^{6}}}

\nthroot{9}{\frac{3^{63}}{5^{36}}}

\nthroot{9}{\frac{x^{72}}{5^{72}}}

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

\nthroot{8}{\frac{7^{8}}{2^{56}}}

\sqrt{\frac{x^{16}}{y^{20}}}

\sqrt{\frac{7^{10}}{5^{4}}}

\nthroot{7}{\frac{x^{70}}{y^{63}}}

\nthroot{4}{\frac{3^{28}}{y^{40}}}

\nthroot{4}{\frac{3^{24}}{2^{32}}}

\nthroot{7}{\frac{x^{63}}{y^{14}}}

\nthroot{4}{\frac{x^{12}}{y^{32}}}

\nthroot{4}{\frac{x^{12}}{5^{8}}}

\nthroot{3}{\frac{7^{30}}{5^{15}}}

\nthroot{7}{\frac{x^{21}}{2^{35}}}

\nthroot{3}{\frac{7^{27}}{y^{27}}}

\nthroot{9}{\frac{3^{45}}{2^{81}}}

\nthroot{9}{\frac{3^{18}}{5^{81}}}

\nthroot{6}{\frac{7^{54}}{5^{42}}}

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

\nthroot{9}{\frac{7^{9}}{2^{18}}}

\nthroot{4}{\frac{x^{16}}{5^{20}}}