Newbie here.  If L=[1/2, 1/3, 1/4], how can I display the unevaluated sum of the numerical terms in the list?  I don't want to use sigma notation. 

If L=[x,y,z], I can just do `+`(op(L)) to get x+y+z.  I can't make this work with numbers instead of variables.   Maple evaluates and gives me 13/12.  I want 1/2+1/3+1/4.