Question 888395
Even putting exactly what you wrote as seen in your message body field, what you want is very uncertain.  


Assuming, in pure text, you want this:

(((1+1)/(2+3))/((1+2)/(9+3)))^(-2)


The rendered form, if you put on the matching triple brace tag, is this:

{{{(((1+1)/(2+3))/((1+2)/(9+3)))^(-2)}}},  the negative two, supposed to appear as exponent, although the rendering is not making it appear right.


Steps:

{{{(((2)/(5))/((3)/(12)))^(-2)}}}


{{{(((2)/(5))/((1)/(4)))^(-2)}}}


{{{((2/5)(4/1))^(-2)}}}


{{{(8/5)^(-2)}}}


{{{(8^-2)/(5^-2)}}}


{{{highlight(5^2/8^2)}}}