+118608 $${\frac{{\mathtt{1}}}{{\mathtt{4}}}}{\mathtt{\,\times\,}}{{\mathtt{m}}}^{{\mathtt{2}}}{\mathtt{\,-\,}}{\frac{{\mathtt{1}}}{{\mathtt{9}}}}$$ cannot be simplified.
I suppose you could turn it into an entire fraction.
$$\\\frac{9*1m^2}{9*4} - \frac{4*1}{4*9}\\\\
=\frac{9m^2-4}{36}$$
+118608 $${\frac{{\mathtt{1}}}{{\mathtt{4}}}}{\mathtt{\,\times\,}}{{\mathtt{m}}}^{{\mathtt{2}}}{\mathtt{\,-\,}}{\frac{{\mathtt{1}}}{{\mathtt{9}}}}$$ cannot be simplified.
I suppose you could turn it into an entire fraction.
$$\\\frac{9*1m^2}{9*4} - \frac{4*1}{4*9}\\\\
=\frac{9m^2-4}{36}$$
