$$\frac { 15 / 6 } { 144 } \times \frac { 122 } { 48 } \div \frac { 60 } { 128 }$$
$\frac{61}{648}\approx 0.094135802$
$$\frac{\frac{15}{6\times 144}\times \frac{122}{48}}{\frac{60}{128}}$$
$$\frac{\frac{15}{864}\times \frac{122}{48}}{\frac{60}{128}}$$
$$\frac{\frac{5}{288}\times \frac{122}{48}}{\frac{60}{128}}$$
$$\frac{\frac{5}{288}\times \frac{61}{24}}{\frac{60}{128}}$$
$$\frac{\frac{5\times 61}{288\times 24}}{\frac{60}{128}}$$
$$\frac{\frac{305}{6912}}{\frac{60}{128}}$$
$$\frac{\frac{305}{6912}}{\frac{15}{32}}$$
$$\frac{305}{6912}\times \frac{32}{15}$$
$$\frac{305\times 32}{6912\times 15}$$
$$\frac{9760}{103680}$$
$$\frac{61}{648}$$
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$\frac{61}{2 ^ {3} \cdot 3 ^ {4}} = 0.0941358024691358$