$$\frac{ 2 }{ 5 } \times \frac{ 10 }{ 9 } \times \frac{ 7 }{ 5 }$$
$\frac{28}{45}\approx 0.622222222$
$$\frac{2\times 10}{5\times 9}\times \frac{7}{5}$$
$$\frac{20}{45}\times \frac{7}{5}$$
$$\frac{4}{9}\times \frac{7}{5}$$
$$\frac{4\times 7}{9\times 5}$$
$$\frac{28}{45}$$
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$\frac{2 ^ {2} \cdot 7}{3 ^ {2} \cdot 5} = 0.6222222222222222$