Simplify $\frac{3^n - 3^{n - 1}}{3^3 \times 3^n - 27 \times 3^{n - 1}}$

$\frac{1}{27}$

$\frac{4}{3}$

Correct answer is C

$\frac{3^n - 3^{n - 1}}{3^3 \times 3^n - 27 \times 3^{n - 1}}$ = $\frac{3^n - 3^{n - 1}}{3^3(3^n - 3^{n - 1})}$

= $\frac{3^n - 3^{n - 1}}{27(3^n - 3^{n - 1})}$

= $\frac{1}{27}$

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Simplify 3n−3n−133×3n−27×3n−1\frac{3^n - 3^{n - 1}}{3^3 \times 3^n - 27 \times 3^{n - 1}}

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Simplify $\frac{3^n - 3^{n - 1}}{3^3 \times 3^n - 27 \times 3^{n - 1}}$