Comment #2 on issue 2067 by smichr: expand complex doesn't expand (x+I*x)/(1+I) quotient
http://code.google.com/p/sympy/issues/detail?id=2067

Like radsimp:

(nr+I*ni)/(dr+I*di)
-> (nr+I*ni)(dr-I*di)/(dr**2+di**2)
-> (nr*dr + ni*di)/(dr**2+di**2) + I*(ni*dr - nr*di)/(dr**2+di**2)

With nr=ni=x and dr=di=1 this becomes 2*x/2 + I*0 = x

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