newb algebra question

I have this:
                                           2
                                  sqrt(2) s
(%o52)                  -------------------------------
                                 2                    2
                        sqrt(2) w  + 2 s w + sqrt(2) s

I want to divide num and den by sqrt(2), resulting in:

                                     2
                                   s
(%o52)                  -------------------------
                         2                    2
                        w  + sqrt(2) s w +  s

What's the easiest way to do this?