$$\frac{55}{5}[(2+\frac{1}{2}+\frac{3}{2}):\frac{16}{3}]^{2}+[(\frac{1}{5})^{2}+\frac{1}{5}]\cdot\frac{100}{3}:\frac{16}{5}$$
$\frac{139}{16}=8.6875$
$$11\times \left(\frac{2+\frac{1}{2}+\frac{3}{2}}{\frac{16}{3}}\right)^{2}+\frac{\left(\left(\frac{1}{5}\right)^{2}+\frac{1}{5}\right)\times \frac{100}{3}}{\frac{16}{5}}$$
$$11\times \left(\frac{\frac{5}{2}+\frac{3}{2}}{\frac{16}{3}}\right)^{2}+\frac{\left(\left(\frac{1}{5}\right)^{2}+\frac{1}{5}\right)\times \frac{100}{3}}{\frac{16}{5}}$$
$$11\times \left(\frac{4}{\frac{16}{3}}\right)^{2}+\frac{\left(\left(\frac{1}{5}\right)^{2}+\frac{1}{5}\right)\times \frac{100}{3}}{\frac{16}{5}}$$
$$11\times \left(4\times \frac{3}{16}\right)^{2}+\frac{\left(\left(\frac{1}{5}\right)^{2}+\frac{1}{5}\right)\times \frac{100}{3}}{\frac{16}{5}}$$
$$11\times \left(\frac{3}{4}\right)^{2}+\frac{\left(\left(\frac{1}{5}\right)^{2}+\frac{1}{5}\right)\times \frac{100}{3}}{\frac{16}{5}}$$
$$11\times \frac{9}{16}+\frac{\left(\left(\frac{1}{5}\right)^{2}+\frac{1}{5}\right)\times \frac{100}{3}}{\frac{16}{5}}$$
$$\frac{99}{16}+\frac{\left(\left(\frac{1}{5}\right)^{2}+\frac{1}{5}\right)\times \frac{100}{3}}{\frac{16}{5}}$$
$$\frac{99}{16}+\frac{\left(\frac{1}{25}+\frac{1}{5}\right)\times \frac{100}{3}}{\frac{16}{5}}$$
$$\frac{99}{16}+\frac{\frac{6}{25}\times \frac{100}{3}}{\frac{16}{5}}$$
$$\frac{99}{16}+\frac{8}{\frac{16}{5}}$$
$$\frac{99}{16}+8\times \frac{5}{16}$$
$$\frac{99}{16}+\frac{5}{2}$$
$$\frac{139}{16}$$
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$\frac{139}{2 ^ {4}} = 8\frac{11}{16} = 8.6875$
