$$20+\frac{22-16}{2\times22-16-11}\times5$$
$\frac{370}{17}\approx 21.764705882$
$$20+\frac{6}{2\times 22-16-11}\times 5$$
$$20+\frac{6}{44-16-11}\times 5$$
$$20+\frac{6}{28-11}\times 5$$
$$20+\frac{6}{17}\times 5$$
$$20+\frac{6\times 5}{17}$$
$$20+\frac{30}{17}$$
$$\frac{340}{17}+\frac{30}{17}$$
$$\frac{340+30}{17}$$
$$\frac{370}{17}$$
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$\frac{2 \cdot 5 \cdot 37}{17} = 21\frac{13}{17} = 21.764705882352942$
