1-2/3x

-----------(fraction line for readabilitys sake)

x-4/9x

first thing I do is get the common denominator which is 27x

I multiply it around and end up with:

27x - 18/27x^2-12

then I factor it and end up with

9(3x-2)/3(9x^2-4)

the answer is supposed to be

3/3x+2

can anyone help me? thanks!