do you mean ???
3x/5
--------
x/4 + x/2
????
if so then multiply top and bottom by 20/x
(3x/5)(20/x)
-------------------------
(x/4)(20/x) + (x/2)(20/x)
12
-------
5+10
=12/15 = 4/5
3x/5/
x/4+x/2
2 answers
Thank you