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[tex]2 \frac{1}{5} - \frac{2}{3} - \frac{2}{15} \\ = \frac{11}{5} - \frac{2}{3} - \frac{2}{15} \\ = \frac{3 \times 11 - 5 \times 2 - 2}{15} \\ = \frac{33 - 10 - 2}{15} \\ = \frac{21}{15} \\ = 1 \frac{2}{5} [/tex]

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