$$(2/3-6/5) \times (4/5+10/3)$$
$-\frac{496}{225}\approx -2.204444444$
$$\left(\frac{10}{15}-\frac{18}{15}\right)\left(\frac{4}{5}+\frac{10}{3}\right)$$
$$\frac{10-18}{15}\left(\frac{4}{5}+\frac{10}{3}\right)$$
$$-\frac{8}{15}\left(\frac{4}{5}+\frac{10}{3}\right)$$
$$-\frac{8}{15}\left(\frac{12}{15}+\frac{50}{15}\right)$$
$$-\frac{8}{15}\times \frac{12+50}{15}$$
$$-\frac{8}{15}\times \frac{62}{15}$$
$$\frac{-8\times 62}{15\times 15}$$
$$\frac{-496}{225}$$
$$-\frac{496}{225}$$
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$-\frac{496}{225} = -2\frac{46}{225} = -2.2044444444444444$
