ClearAll["Global`*"](* first, let's try putting everything in using x + iy notation *)
zR = R ; zC =((-1)/(ω c))I;zL = ω L I;
ztop = zL+zC;
zbot = zR+zC;
ztot=((ztop zbot)/(ztop + zbot));
Print["As a formula, the total impedance is: ",ztot]
ω = 377.0;L=2.0;R=150.0;c=1 (10^(-5));
Print["With numbers, the total impedance is: ",ztot]

ClearAll["Global`*"](* next, let's redo everything using "Euler" notation *)
magtop = (ω L - (1/(ω c)));θtop = (π/2);
magbot = (Sqrt[(R^2)+(((((-1)/(ω c))))^2)]);θbot = ArcTan[R,(((-1)/(ω c)))];
ztot = (((magtop  (E^(I θtop)))(magbot (E^(I θbot))))/((magtop (E^(I θtop)))+(magbot (E^(I θbot)))));
Print["As a formula, the total impedance is: ",ztot//FullSimplify]
ω = 377.0;L=2.0;R=150.0;c=1 (10^(-5));
Print["With numbers, the total impedance is: ",ztot]
supstr=ToString[Arg[ztot]] <>"I";
Print["Or in 'Euler Notation', it is: ",Abs[ztot],Superscript["E",supstr ]]