Question 719250
If you are asking this:

{{{sqrt(49)/sqrt(54)}}}, and wish to simplify it, then possible sure.
Equal to {{{sqrt(7*7)/sqrt(2*3*3*3)=7/(3*sqrt(2*3))}}}
={{{7/(3*sqrt(6))}}}
={{{(7/(3*sqrt(6)))(sqrt(6)/sqrt(6))}}}
={{{7*sqrt(6)/(3*6)}}}={{{highlight(7*sqrt(6)/18)}}}