Evaluate (1-2)/(3^-3)

$\frac{1 - 2}{3^{- 3}}$

Move $3^{- 3}$ to the numerator using the negative exponent rule $\frac{1}{b^{- n}} = b^{n}$ .

$(1 - 2) \cdot 3^{3}$

Subtract $2$ from $1$ .

$- 1 \cdot 3^{3}$

Raise $3$ to the power of $3$ .

$- 1 \cdot 27$

Multiply $- 1$ by $27$ .

$- 27$