mfracBheight17.tex

\begin{array}{cc}
\mathrm{taller\ num} & {{x}}^{2}+{\frac{{h}}{{x}} }^{2}+{\left( \frac{{h}}{{x}} \right) }^{2} \\
\mathrm{taller\ denom} & {{x}}^{2}+{\frac{{x}}{{y}} }^{2}+{\left( \frac{{x}}{{y}} \right) }^{2} \\
\end{array}