number representation - Converting a quantity to a decimal form

I have a function giving me this:

(5 Coulomb)/(6 Second)

as output. I want this in decimal form and would like to have the variables taken off the end for unit analysis. How would I do this? I have tried NumberForm, but I think that the unassigned variables I am using for units are throwing it off.

EDIT: Here is what I have for code

In[1]: f[P_, V_] := P/V
In[2]: f[100 W, 120 V]
Out[2]:(5 Coulomb)/(6 Second)

I took your advice and put:

In[1]: f[P_, V_] := P/V
In[2]: f[100 W, 120 V]//N[#]&

And got:

Out[2]:(0.833333 Coulomb)/(Second)

Comments

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