$$= 3 \frac { 1 } { 3 } \times 3 \frac { 5 } { 6 }$$
$\frac{115}{9}\approx 12.777777778$
$$\frac{9+1}{3}\times \frac{3\times 6+5}{6}$$
$$\frac{10}{3}\times \frac{3\times 6+5}{6}$$
$$\frac{10}{3}\times \frac{18+5}{6}$$
$$\frac{10}{3}\times \frac{23}{6}$$
$$\frac{10\times 23}{3\times 6}$$
$$\frac{230}{18}$$
$$\frac{115}{9}$$
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$\frac{5 \cdot 23}{3 ^ {2}} = 12\frac{7}{9} = 12.777777777777779$
