Spacing and font in \frac

Question

When I write text in frac, it looks bad no space... bad font. How can I change it

\documentclass{article}
\begin{document}
$ \frac{Lorem Ipsum}{abc dfe}$
\end{document}

Answer 1

You could make the space character active in math mode to insert a thick muskip in its place. For this you will have to modify the definition of \obeyspaces (which I should probably propose to the LaTeX core) to make the expansion of the obeyed space overrideable. Then you just have to append \obeyspaces to \everymath and \everydisplay and you are all set to produce the most horrible-looking documents.

\documentclass{article}

\makeatletter
\def\obeyedspace{\space}
\def\@obeyedspace{\obeyedspace}
{\obeyspaces\global\let \@obeyedspace}
\makeatother

\renewcommand\obeyedspace{\;}
\everydisplay={\obeyspaces}
\everymath={\obeyspaces}

\begin{document}

$\frac{Lorem Ipsum}{abc dfe}$

\end{document}