SOLUTION: {{{(5x/4)+(1/x)}}} I thought LCD and got {{{(5x^2)/(4x) + 4/(4x)}}} but don't know where to go from here

 

I thought the LCD and got

 but don't know where to go from here.

You've done all the hard work.  Now all you need do is 

1. Combine the two numerators,  and  using the same sign " + " 
 (that's between the fractions) between the numerators and get .

2. Draw a line underneath the  and write the LCD, , just one time
underneath the line like this:

 

That's all there is to it.

Edwin