Question 862910
Exactly as shown as text, the expression is {{{b^(-1) + d^(-1) / (b)^(-1)}}}.


Any number raised to negative one power works this way:
{{{x^-1=1/x}}}.


Yours becomes
{{{1/b+b/d}}}
{{{(d/d)(1/b)+(b/b)(b/d)}}}
{{{(d+b*b)/(bd)}}}
{{{highlight((d+b^2)/(bd))}}}