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asnaseer
How to show a cancellation line - e.g. in this equation: x = 3 * 4 / 3 you may want to show the 3's being cancelled out.
You can add a cancellation strike-through line to anything using \\(\)cancel{...}. e.g.: \\([\)x=3*\\(\)frac{4}{3}=\\(\)cancel{3}*\\(\)frac{4}{\\(\)cancel{3}}=4\\(]\) will produce:\[x=3*\frac{4}{3}=\cancel{3}*\frac{4}{\cancel{3}}=4\]
\(\huge\times\) looks better than \(\huge *\) I think.
just for Mr.Math, the * has been replaced with \\(\)times:\[x=3\times\frac{4}{3}=\cancel{3}\times\frac{4}{\cancel{3}}=4\]