$$3 \frac{ 1 }{ 5 } 1 \frac{ .1 }{ 7 } 3 \frac{ .1 }{ 4 }$$
$\frac{8591}{875}\approx 9.818285714$
$$\frac{15+1}{5}\times \frac{1\times 7+0.1}{7}\times \frac{3\times 4+0.1}{4}$$
$$\frac{16}{5}\times \frac{1\times 7+0.1}{7}\times \frac{3\times 4+0.1}{4}$$
$$\frac{16}{5}\times \frac{7+0.1}{7}\times \frac{3\times 4+0.1}{4}$$
$$\frac{16}{5}\times \frac{7.1}{7}\times \frac{3\times 4+0.1}{4}$$
$$\frac{16}{5}\times \frac{71}{70}\times \frac{3\times 4+0.1}{4}$$
$$\frac{16\times 71}{5\times 70}\times \frac{3\times 4+0.1}{4}$$
$$\frac{1136}{350}\times \frac{3\times 4+0.1}{4}$$
$$\frac{568}{175}\times \frac{3\times 4+0.1}{4}$$
$$\frac{568}{175}\times \frac{12+0.1}{4}$$
$$\frac{568}{175}\times \frac{12.1}{4}$$
$$\frac{568}{175}\times \frac{121}{40}$$
$$\frac{568\times 121}{175\times 40}$$
$$\frac{68728}{7000}$$
$$\frac{8591}{875}$$
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$\frac{71 \cdot 11 ^ {2}}{7 \cdot 5 ^ {3}} = 9\frac{716}{875} = 9.818285714285715$
