Stacked fractions

A fraction written on multiple levels is often ambiguous, especially when handwritten. For example, \(\frac{10}{\frac{2}{5}}\) and \(\frac{\frac{10}{2}}{5}\) result in 25 and 1, respectively.

Things get even worse when you use the letter \(\Xi\) in this convoluted example:

\[ \frac{\Xi}{\bar\Xi} \]