I want to write this:
But the size of the brackets don't fits the fraction:
What can I do to fix it?
I see the answer here Fraction in \pmod bracket but I'm using LyX so I don't know how to do it at Lyx (is there other way?)
(at inline mode it's fine, but I need it at display mode)
P.S. It's OK to do it without
pmod but its need to look the same :)