$$3.1 \frac { 1 } { 3 } \times 2 \frac { 1 } { 2 } =$$
$\frac{103}{12}\approx 8.583333333$
$$\frac{9.3+1}{3}\times \frac{2\times 2+1}{2}$$
$$\frac{10.3}{3}\times \frac{2\times 2+1}{2}$$
$$\frac{103}{30}\times \frac{2\times 2+1}{2}$$
$$\frac{103}{30}\times \frac{4+1}{2}$$
$$\frac{103}{30}\times \frac{5}{2}$$
$$\frac{103\times 5}{30\times 2}$$
$$\frac{515}{60}$$
$$\frac{103}{12}$$
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$\frac{103}{3 \cdot 2 ^ {2}} = 8\frac{7}{12} = 8.583333333333334$
