Question 847082
Exactly as given, {{{1/2b + 2/b-5}}};
Lowest common denominator is 2b.


{{{(1/(2b))+(2/2)(2/b)-((2b)/(2b))5}}}
{{{1/(2b))+4/(2b)-10b/(2b)}}}
{{{highlight((5-10b)/(2b))}}}