Question 269545
(5)/(x+3), (4)/(x)
:
The common denominator is x(x+3)
{{{(5x)/(x(x+3))}}} and  {{{(4(x+3))/(x(x+3))}}}
:
{{{(5x)/((x^2+3x))}}} and  {{{((4x+12))/((x^2+3x))}}}