# Aligning a small paragraph alongside a math equation?

I've been struggling with even describing my question - my apologies if it's already been asked before. I'm new to Latex and I'm trying to typeset something that looks like this:

Right now I have the following code which doesn't do the right thing:

\begin{equation*}
Specific \; activity \; concentration = \myfrac[2pt]{Absorbance \; \times \; 60\, \frac{s}{min}\; \times \; 10^6 \; \times \; 0.3\,L}{1450\, M^{-1}cm^{-1} \; \times 1 \; cm \; \times \; 3\, mL}
\end{equation*}


If anyone could let me know what would be the best way to achieve this, I'd be very thankful!

• You should provide a MWE (Minimal Working Example)
• your equation is out of context, so meaning of used units is not clear
• See if the following is what you after:

Edit: added options as suggested @egreg in his comment below:

\documentclass{article}

\usepackage{amsmath}
\usepackage{siunitx}
\DeclareSIUnit{\mm}{M} % what quantity is M?

\begin{document}
$\parbox{7em}{\centering Specific\\ activity\\ concentration} = \frac{\text{Absorbance}\times \qty{60}{\second\per\minute} \times 10^6 \times \qty{0.3}{\litre}} {\qty{1450}\per\mm\centi\metre} \times \qty{1}{\centi\metre} \times \qty{3}{\milli\litre}}$
and as suggested @egreg:
$\begin{tabular}{c}Specific\\ activity\\ concentration\end{tabular} = \dfrac{\text{Absorbance}\times \qty{60}{\second\per\minute} \times 10^6 \times \qty{0.3}{\litre}} {\qty{1450}{\per\mm\per\centi\metre} \times \qty{1}{\centi\metre} \times \qty{3}{\milli\litre}}$
\end{document}


• I'm sorry for the non-ideal post details - but your answer was absolutely perfect, it got me what I was looking for!! (and I learned some new things for better formatting too ) Thank you so much! 😊 Apr 10, 2023 at 7:09
• @lumixrani, I had problems with understanding what unix is M (it is not defined in ˙siunitx package). Actually all your units are quite strange. You should reconsider what they should present. Apr 10, 2023 at 7:29
• @Zarko Why not the much simpler \begin{tabular}{@{}c@{}}Specific \\ activity \\ concentration \end{tabular} that doesn't require to guess a width? Apr 10, 2023 at 8:27
• @Zarko M was meant to be "molar concentration", like it's used in chemistry Apr 11, 2023 at 7:02