Yay, I think I fixed all the issues! So feel free to use the [tex] tag to make all your math look awesome! And as a sample:
##
\begin{equation}
\label{xx}
\begin{split}a_{1}& =b+c_{2}-d\\&
\quad +e-f_{5}\\&
=g+h\\&
=
\cfrac{z}{\sqrt{2}+\cfrac{1}{\sqrt{2}+\cfrac{1}{\sqrt{2 + \cfrac{x}{y}}+\dotsb}}}\end{split}
\end
{equation}
##
Which was made from
\begin{equation}
\label{xx}
\begin{split}a_{1}& =b+c_{2}-d\\&
\quad +e-f_{5}\\&
=g+h\\&
=
\cfrac{z}{\sqrt{2}+\cfrac{1}{\sqrt{2}+\cfrac{1}{\sqrt{2 + \cfrac{x}{y}}+\dotsb}}}\end{split}
\end
{equation}
