$$\frac { 3 } { 8 } + \frac { 81 } { 12 } + 38 \times 10$$
$\frac{3097}{8}=387.125$
$$\frac{3}{8}+\frac{27}{4}+38\times 10$$
$$\frac{3}{8}+\frac{54}{8}+38\times 10$$
$$\frac{3+54}{8}+38\times 10$$
$$\frac{57}{8}+38\times 10$$
$$\frac{57}{8}+380$$
$$\frac{57}{8}+\frac{3040}{8}$$
$$\frac{57+3040}{8}$$
$$\frac{3097}{8}$$
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$\frac{19 \cdot 163}{2 ^ {3}} = 387\frac{1}{8} = 387.125$
