Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
(x^2+x-12/x^2-x-20) / (3x^2-24x+45/12x^2-48x-60)
(x^2+x-12/x^2-x-20) / (3x^2-24x+45/12x^2-48x-60)
Natural Language
Math Input
Extended Keyboard
