Question

Find the cube root of 686-3456.

Answer 1

$$\begin{gathered} \sqrt[3]{\frac{686}{3456}} \\ =\sqrt[3]{\frac{343}{1728}} \\ =\sqrt[3]{\frac{7\times 7\times 7}{12\times 12\times 12}} \\ =\frac{7}{12}\left(\mathrm{answer}\right) \end{gathered}$$$$\begin{gathered} \sqrt[3]{\frac{686}{3456}} \\ =\sqrt[3]{\frac{343}{1728}} \\ =\sqrt[3]{\frac{7\times 7\times 7}{12\times 12\times 12}} \\ =\frac{7}{12}\left(\mathrm{answer}\right) \end{gathered}$$