Thực hiện phép tính hợp lý: − 4/29 ⋅ 23/11 + − 4/29 ⋅ 8/11 + − 4/29 ⋅ 2/11 .

\(\frac{{ - 4}}{{29}} \cdot \frac{{23}}{{11}} + \frac{{ - 4}}{{29}} \cdot \frac{8}{{11}} + \frac{{ - 4}}{{29}} \cdot \frac{2}{{11}}\)

\( = \frac{{ - 4}}{{29}} \cdot \left( {\frac{{23}}{{11}} + \frac{8}{{11}} + \frac{2}{{11}}} \right)\)

\( = \frac{{ - 4}}{{29}} \cdot \frac{{33}}{{11}} = \frac{{ - 4}}{{29}} \cdot 3 = \frac{{ - 12}}{{29}}.\)