$$9/16 \times 4/12+9/16 \times 3/9$$
$\frac{3}{8}=0.375$
$$\frac{\frac{9\times 4}{16}}{12}+\frac{\frac{9}{16}\times 3}{9}$$
$$\frac{\frac{36}{16}}{12}+\frac{\frac{9}{16}\times 3}{9}$$
$$\frac{\frac{9}{4}}{12}+\frac{\frac{9}{16}\times 3}{9}$$
$$\frac{9}{4\times 12}+\frac{\frac{9}{16}\times 3}{9}$$
$$\frac{9}{48}+\frac{\frac{9}{16}\times 3}{9}$$
$$\frac{3}{16}+\frac{\frac{9}{16}\times 3}{9}$$
$$\frac{3}{16}+\frac{\frac{9\times 3}{16}}{9}$$
$$\frac{3}{16}+\frac{\frac{27}{16}}{9}$$
$$\frac{3}{16}+\frac{27}{16\times 9}$$
$$\frac{3}{16}+\frac{27}{144}$$
$$\frac{3}{16}+\frac{3}{16}$$
$$\frac{3+3}{16}$$
$$\frac{6}{16}$$
$$\frac{3}{8}$$
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$\frac{3}{2 ^ {3}} = 0.375$
