$$\frac{10}{63}-\frac{-6}{7}$$
$\frac{64}{63}\approx 1.015873016$
$$\frac{10}{63}-\left(-\frac{6}{7}\right)$$
$$\frac{10}{63}+\frac{6}{7}$$
$$\frac{10}{63}+\frac{54}{63}$$
$$\frac{10+54}{63}$$
$$\frac{64}{63}$$
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$\frac{2 ^ {6}}{3 ^ {2} \cdot 7} = 1\frac{1}{63} = 1.0158730158730158$
