$$\frac{2}{8}+-\frac{8}{2}=$$
$-\frac{15}{4}=-3.75$
$$\frac{1}{4}-\frac{8}{2}$$
$$\frac{1}{4}-4$$
$$\frac{1}{4}-\frac{16}{4}$$
$$\frac{1-16}{4}$$
$$-\frac{15}{4}$$
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$-\frac{15}{4} = -3\frac{3}{4} = -3.75$
