Reduce fraction in LaTex

TheEmptySet

MHF Hall of Honor
Feb 2008
3,764
2,029
Yuma, AZ, USA
So I know how to reduce simple fractions is Latex with

\frac{3x}{3y}=\frac{\not{3}x}{\not{3}y}

\(\displaystyle \frac{3x}{3y}=\frac{\not{3}x}{\not{3}y}=\frac{x}{y}\)

But if I try with a binomial it only crosses out the parenthesis.

\(\displaystyle \frac{3\not{(a+b)}}{\not{(a+b)}}=3\)

Any ideas would be awesome.

TES
 

Soroban

MHF Hall of Honor
May 2006
12,028
6,341
Lexington, MA (USA)
Hello, TheEmptySet!

So I know how to reduce simple fractions is Latex with

\frac{3x}{3y}=\frac{\not{3}x}{\not{3}y}

\(\displaystyle \frac{3x}{3y}=\frac{\not{3}x}{\not{3}y}=\frac{x}{y}\)

But if I try with a binomial it only crosses out the parenthesis.

\(\displaystyle \frac{3\not{(a+b)}}{\not{(a+b)}}=3\)

Any ideas would be awesome.

I see that \cancel{ } doesn't work at this site.


The command \rlap{////} superimposes //// over the next expression.


\rlap{/////}x+y . . . \(\displaystyle \rlap{/////}x+y\)


\frac{3(\rlap{////}a+b)}{\rlap{////}a+b} = 3 . . . \(\displaystyle \frac{3(\rlap{////}a+b)}{\rlap{////}a+b} =3\)


\rlap{////}\backslash\backslash\backslash\backslash . . . \(\displaystyle \rlap{////}\backslash\backslash\backslash \backslash\)


\rlap{ooo}|||||| . . . \(\displaystyle \rlap{ooo}|||||| \)


Some symbols can't be used. .You need to experiment.
 
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Soroban

MHF Hall of Honor
May 2006
12,028
6,341
Lexington, MA (USA)

. . . \(\displaystyle \Huge \frac{6}{8}\) .\(\displaystyle =\; \frac{6}{8}\) .\(\displaystyle =\; \tfrac{6}{8}\)