$$( \frac { 12 } { 8 } \times \frac { 16 } { 10 } ) + ( \frac { - 3 } { 9 } \times \frac { 18 } { - 16 } )$$
$\frac{111}{40}=2.775$
$$\frac{3}{2}\times \frac{16}{10}+\frac{-3}{9}\times \frac{18}{-16}$$
$$\frac{3}{2}\times \frac{8}{5}+\frac{-3}{9}\times \frac{18}{-16}$$
$$\frac{3\times 8}{2\times 5}+\frac{-3}{9}\times \frac{18}{-16}$$
$$\frac{24}{10}+\frac{-3}{9}\times \frac{18}{-16}$$
$$\frac{12}{5}+\frac{-3}{9}\times \frac{18}{-16}$$
$$\frac{12}{5}-\frac{1}{3}\times \frac{18}{-16}$$
$$\frac{12}{5}-\frac{1}{3}\left(-\frac{9}{8}\right)$$
$$\frac{12}{5}+\frac{-\left(-9\right)}{3\times 8}$$
$$\frac{12}{5}+\frac{9}{24}$$
$$\frac{12}{5}+\frac{3}{8}$$
$$\frac{96}{40}+\frac{15}{40}$$
$$\frac{96+15}{40}$$
$$\frac{111}{40}$$
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$\frac{3 \cdot 37}{2 ^ {3} \cdot 5} = 2\frac{31}{40} = 2.775$
