$$[\frac{2}{5}\times\frac{(-3)}{2}]+[\frac{2}{5}\times\frac{5}{12}]$$
$-\frac{13}{30}\approx -0.433333333$
$$\frac{2}{5}\left(-\frac{3}{2}\right)+\frac{2}{5}\times \frac{5}{12}$$
$$\frac{2\left(-3\right)}{5\times 2}+\frac{2}{5}\times \frac{5}{12}$$
$$\frac{-3}{5}+\frac{2}{5}\times \frac{5}{12}$$
$$-\frac{3}{5}+\frac{2}{5}\times \frac{5}{12}$$
$$-\frac{3}{5}+\frac{2\times 5}{5\times 12}$$
$$-\frac{3}{5}+\frac{2}{12}$$
$$-\frac{3}{5}+\frac{1}{6}$$
$$-\frac{18}{30}+\frac{5}{30}$$
$$\frac{-18+5}{30}$$
$$-\frac{13}{30}$$
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$-\frac{13}{30} = -0.43333333333333335$
