Scripting for table arrows

\newcommand{\fractionrow}[4]{%

	\rule{0pt}{4em} % vertical spacing above each row

	{\large $\displaystyle #1 = \raisebox{0.2em}{\rule{1cm}{0.4pt}}$} & 

	{\large $\displaystyle #2 = \raisebox{0.2em}{\rule{1cm}{0.4pt}}$} & 

	{\large $\displaystyle #3 = \raisebox{0.2em}{\rule{1cm}{0.4pt}}$} & 

	{\large $\displaystyle #4 = \raisebox{0.2em}{\rule{1cm}{0.4pt}}$} \\

}