$$-2/5 \times (3/10+1/15)$$
$-\frac{11}{75}\approx -0.146666667$
$$-\frac{2}{5}\left(\frac{3}{10}+\frac{1}{15}\right)$$
$$-\frac{2}{5}\left(\frac{9}{30}+\frac{2}{30}\right)$$
$$-\frac{2}{5}\times \frac{9+2}{30}$$
$$-\frac{2}{5}\times \frac{11}{30}$$
$$\frac{-2\times 11}{5\times 30}$$
$$\frac{-22}{150}$$
$$-\frac{11}{75}$$
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$-\frac{11}{75} = -0.14666666666666667$
