Hello,

My 15 year old son have an exercice about sqrt.

He must push radix at numerator and decrease it :

Question : 21/sqrt(8)     answer : 21*sqrt(2)/4
Question : 1/(2-sqrt(3)) answer : 2+sqrt(3)
Question : is 8/(3-sqrt(13)) + 8/(4+sqrt(13)) is integer

The last result is an integer, So the .radical_simplify() method (from maxima) is right.

Is it possible to get from Sage a rational denominator ?

Many thanks.

Francois (in France)

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