Evaluate 1/3 square root of 0.81-1

$\frac{1}{3} \sqrt{0.81} - 1$

Step 1

Simplify each term.

Rewrite $0.81$ as ${0.9}^{2}$ .

$\frac{1}{3} \cdot \sqrt{{0.9}^{2}} - 1$

Pull terms out from under the radical, assuming positive real numbers.

$\frac{1}{3} \cdot 0.9 - 1$

Combine $\frac{1}{3}$ and $0.9$ .

$\frac{0.9}{3} - 1$

Divide $0.9$ by $3$ .

$0.3 - 1$

Step 2

Subtract $1$ from $0.3$ .

$- 0.7$