Question 886714
This is for the second expression in the list:


√30+3√3/√30-3√3 

For rendering on the page, that is sqrt(30)+3sqrt(3)/sqrt(30)-3sqrt(30)
{{{sqrt(30)+3sqrt(3)/sqrt(30)-3sqrt(30)}}}


{{{sqrt(30)+3(sqrt(3)/sqrt(30))(sqrt(30)/sqrt(30))-3sqrt(30)}}}


{{{sqrt(30)+3*sqrt(3)sqrt(30)/30-3sqrt(30)}}}


{{{sqrt(30)+sqrt(90)/10-3sqrt(30)}}}


{{{sqrt(9*10)/10-2sqrt(30)}}}


{{{highlight(3sqrt(10)/10-2sqrt(30))}}}
or
{{{highlight((3sqrt(30)-20sqrt(30))/10)}}}