$$(-2/5 \times 3/10)+(-2/5 \times 1/5)$$
$-\frac{1}{5}=-0.2$
$$\frac{-\frac{2}{5}\times 3}{10}+\frac{\frac{-2}{5}\times 1}{5}$$
$$\frac{\frac{-2\times 3}{5}}{10}+\frac{\frac{-2}{5}\times 1}{5}$$
$$\frac{\frac{-6}{5}}{10}+\frac{\frac{-2}{5}\times 1}{5}$$
$$\frac{-\frac{6}{5}}{10}+\frac{\frac{-2}{5}\times 1}{5}$$
$$\frac{-6}{5\times 10}+\frac{\frac{-2}{5}\times 1}{5}$$
$$\frac{-6}{50}+\frac{\frac{-2}{5}\times 1}{5}$$
$$-\frac{3}{25}+\frac{\frac{-2}{5}\times 1}{5}$$
$$-\frac{3}{25}+\frac{-\frac{2}{5}}{5}$$
$$-\frac{3}{25}+\frac{-2}{5\times 5}$$
$$-\frac{3}{25}+\frac{-2}{25}$$
$$-\frac{3}{25}-\frac{2}{25}$$
$$\frac{-3-2}{25}$$
$$\frac{-5}{25}$$
$$-\frac{1}{5}$$
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$-\frac{1}{5} = -0.2$
