Question 365003
Use a common denominator, {{{4w(w+3)}}}
{{{4/(w+3)+7/(4w)=16w/(4w(w+3))+(7(w+3))/(4w(w+3))}}}
{{{4/(w+3)+7/(4w)=(16w+7(w+3))/(4w(w+3))}}}
{{{4/(w+3)+7/(4w)=(16w+7w+21)/(4w(w+3))}}}
{{{highlight(4/(w+3)+7/(4w)=(23w+21)/(4w(w+3)))}}}