suppose I have one vector say v =[ 2021429518004981288989071978287/3538031894290286283107218751488, 16596427267731862375274731305887/28304255154322290264857750011904]. Its numerator is Nv = [2021429518004981288989071978287, 16596427267731862375274731305887] and denominator is Dv= [3538031894290286283107218751488, 28304255154322290264857750011904]. I have done it by using [Nv, Dv] = numden(sym(v)) and 'sym' because my v is in symbolic form. Now suppose I have only Nv and Dv and I want to find exactly v (in same form) then how can I get it. Please help me.