\documentclass[12pt]{report}
\usepackage{amsthm,amssymb,amsmath,amsfonts,amsthm,bm,mathrsfs}
\newcommand{\ftn}[1]{\footnote{#1}}
\newcommand{\refp}[1]{(\ref{#1})}

\usepackage{xepersian}
\settextfont[Scale=1.1]{XB Zar}
\setdigitfont[Scale=1]{XB Zar}
\setlatintextfont{Times New Roman}




\begin{document}

در زیر دو مدل آمده است:
\begin{equation}
\label{EquFractional}
\begin{array}{llll}
\max  & {\theta }_{o}= & \frac{\displaystyle\sum\limits_{r=1}^{s}{{{u}_{r}}{{y}_{ro}}}}{\displaystyle\sum\limits_{r=1}^{s}{{{v}_{i}}{{x}_{io}}}} & {}  \\
s.t. &  &\frac{\displaystyle\sum\limits_{r=1}^{s}{{{u}_{r}}{{y}_{rj}}}}{\displaystyle\sum\limits_{r=1}^{s}{{{v}_{i}}{{x}_{ij}}}}\le 1 & j=1,\ldots ,n  \\
{} & & {{v}_{i}}\ge 0  & i=1,\ldots ,m  \\
{} & & {{u}_{r}}\ge 0  & r=1,\ldots ,s  \\		
\end{array} 
\end{equation}

\begin{equation}
\label{EquLinear}
\begin{array}{llll}
\max & \theta_o= & \sum\limits_{r=1}^{s}{{{u}_{r}}{{y}_{ro}}} & {}  \\
s.t. & & \sum\limits_{r=1}^{s}{{{v}_{i}}{{x}_{io}}}=1 & {}  \\
{} & & \sum\limits_{r=1}^{s}{{{u}_{r}}{{y}_{rj}}}-\sum\limits_{r=1}^{s}{{{v}_{i}}{{x}_{ij}}}\le 0 & j=1,\ldots ,n  \\
{} & & {{v}_{i}}\ge 0  & i=1,\ldots ,m  \\
{} & & {{u}_{r}}\ge 0  & r=1,\ldots ,s  \\
\end{array}
\end{equation}

مدل (‎\ref{EquFractional}‎) یک مدل کسری ‎\footnote{Fractional}‎ است اما مدل ‎‎\refp{EquLinear}‎‎ یک مدل خطی   ‎‎‎\ftn{Linear}‎ است.
\end{document}