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)
5/(3*a)+1
⇒ algebra.equations.rational.to-rational5/(3*a)+3*a/(3*a)
⇒ algebra.equations.rational.rational-plus(5+3*a)/(3*a)