$$4.75+9.7+0.008\times3.7-(-5)-7$$
$12.4796$
$$14.45+0.008\times 3.7-\left(-5\right)-7$$
$$14.45+0.0296-\left(-5\right)-7$$
$$14.4796-\left(-5\right)-7$$
$$14.4796+5-7$$
$$19.4796-7$$
$$12.4796$$
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$\frac{7 \cdot 4457}{2 ^ {2} \cdot 5 ^ {4}} = 12\frac{1199}{2500} = 12.4796$
