\documentclass{article}
\usepackage{xepersian}
\settextfont{XB Niloofar}
\begin{document}

\begin{tabular}{c|ccccc}
	$X_i$ & $F_i$ & مرتبه اول & مرتبه دوم & مرتبه سوم & مرتبه چهارم\\
	\hline
	-1 & \textcircled{1.5} \\
	& & $\frac{3-(1.5)}{0-(-1)}=\textcircled{1.5}$\\
	0  & 3 & & $\frac{3-1.5}{1-(-1)}=\textcircled{0.75}$\\
	& & $\frac{6-3}{1-0}=3$ & & $\frac{1.5-0.75}{2-(-1)}=\textcircled{0.25}$\\
	1  & 6 & & $\frac{6-3}{2-0}=1.5$ & & $\frac{0.5-0.25}{3-(-1)}=\textcircled{0.0425}$ \\
	& & $\frac{12-6}{2-1}=6$ & & $\frac{3-1.5}{3-0}=0.5$\\
	2  & 12 & & $\frac{12-6}{3-1}=3$ & &  \\
	& & $\frac{24-12}{3-2}=12$\\
	3 & 24 \\
\end{tabular}

\begin{latin}
\begin{tabular}{c|ccccc}
	$X_i$ & $F_i$ & مرتبه اول & مرتبه دوم & مرتبه سوم & مرتبه چهارم\\
	\hline
	-1 & \textcircled{1.5} \\
	& & $\frac{3-(1.5)}{0-(-1)}=\textcircled{1.5}$\\
	0  & 3 & & $\frac{3-1.5}{1-(-1)}=\textcircled{0.75}$\\
	& & $\frac{6-3}{1-0}=3$ & & $\frac{1.5-0.75}{2-(-1)}=\textcircled{0.25}$\\
	1  & 6 & & $\frac{6-3}{2-0}=1.5$ & & $\frac{0.5-0.25}{3-(-1)}=\textcircled{0.0425}$ \\
	& & $\frac{12-6}{2-1}=6$ & & $\frac{3-1.5}{3-0}=0.5$\\
	2  & 12 & & $\frac{12-6}{3-1}=3$ & &  \\
	& & $\frac{24-12}{3-2}=12$\\
	3 & 24 \\
\end{tabular}
\end{latin}


\end{document}