\cancel
[tex]\cancel B[/tex]
[tex]\cancel {AB+CD}[/tex]
[tex]\displaystyle\frac{\cancel{ab}c}{\cancel{ab }d}[/tex]
\cancelto:
[tex]
\displaystyle\frac{32}{64}=\frac{2\times4\times4}{4\times4\times4}
=\frac{\cancelto{1}{2}\times\cancel{4}\times\cancel{4}}{\cancelto{2}{4}\times\cancel{4}\times\cancel{4}}
=\frac12
[/tex]
\xcancel
[tex]\xcancel B[/tex]
[tex]\displaystyle\xcancel{\lim_{x\to1}\frac{1}{x-1}=+\infty}[/tex]
\bcancel
[tex]\bcancel B[/tex]
