I have a large fraction containing very similar parts in both the numerator and denominator, but since the denominator has additional variables, the similar parts are not aligned together. Here is the picture:
I want is align similar parts of both numerator and denominator as in this (photo-edited) picture:
My source code:
\documentclass[]{report}
\usepackage{amsmath}
\begin{document}
\begin{equation}
I_{rs} = \frac{ y^{2} I_{sc,ref}
\bigg[
1 + \frac{\alpha}{100} (T_{op}-T_{ref})
\biggl]
}
{exp
\left
( \displaystyle \frac{V_{oc,ref} \bigg[ 1 + \frac{\beta}{100} (T_{op}-T_{ref}) \biggl]} {a \thinspace V_{t}}
\right) - 1
}
%
\label{eq:I_rs_trans}
\end{equation}
\end{document}
\exp
and\mathrm{ref}
etc