$$(\frac{5}{6}-(\frac{1}{3})^{2})\times\frac{1}{2}$$
$\frac{13}{36}\approx 0.361111111$
$$\left(\frac{5}{6}-\frac{1}{9}\right)\times \frac{1}{2}$$
$$\left(\frac{15}{18}-\frac{2}{18}\right)\times \frac{1}{2}$$
$$\frac{15-2}{18}\times \frac{1}{2}$$
$$\frac{13}{18}\times \frac{1}{2}$$
$$\frac{13\times 1}{18\times 2}$$
$$\frac{13}{36}$$
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$\frac{13}{2 ^ {2} \cdot 3 ^ {2}} = 0.3611111111111111$
