$$\frac{ 1 }{ \frac{ 7 }{ \frac{ 7 }{ \sqrt{ 5 } } } }$$
$\frac{\sqrt{5}}{5}\approx 0.447213595$
$$\frac{\frac{7}{\sqrt{5}}}{7}$$
$$\frac{\frac{7\sqrt{5}}{\left(\sqrt{5}\right)^{2}}}{7}$$
$$\frac{\frac{7\sqrt{5}}{5}}{7}$$
$$\frac{7\sqrt{5}}{5\times 7}$$
$$\frac{\sqrt{5}}{5}$$
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