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[tex]8 \frac{1}{3} \div ( - 2 \frac{2}{3} ) = \frac{3 \times 8 + 1}{3} \div ( - \frac{2 \times 3 + 2}{3} ) = \frac{25}{3} \div ( - \frac{8}{3} ) = \frac{25}{3} \times ( - \frac{3}{8} ) = - \frac{25}{8} = - 3 \frac{1}{8} [/tex]