Exercise algebra.manipulation.rational.simplify
Description
simplify a rational expression (with a variable in a divisor)
Derivation
![](http://ideas.cs.uu.nl/images/external.png)
7/(2*x)+3/(5*x)
⇒ algebra.equations.rational.rational-scale35/(10*x)+6/(10*x)
⇒ algebra.equations.rational.rational-plus41/(10*x)