Express 14 upon root six ➖ root 5 ➖ root eleven with rational denominator

Answer 1

in real math, that is

14/√6 - √5 - √11

to get a rational denominator, multiply top and bottom by √6, giving

14√6/6 - √5 - √11
= (14√6 - 6√5 - 6√11)/6