Question 209081
 {{{2/x + 7/(x-1)}}} = {{{(2(x-1) + 7x)/(x(x-1))}}} = {{{(2x - 2 + 7x)/(x(x-1))}}} = {{{(9x - 2)/(x(x-1))}}}
The reciprocal
{{{(x(x+1))/(9x - 2)}}}