5per6-2per3x2per4:1per3 [tex] \frac{5}{6} - \frac{2}{3} \times \frac{2}{4} \div \frac{1}{3} [/tex]

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[tex] \frac{5}{6} - \frac{2}{3} \times \frac{2}{4} \div \frac{1}{3} \\ = \frac{5}{6} - \frac{1}{3} \div \frac{1}{3} \\ = \frac{5}{6} - \frac{1}{3} \times 3 \\ = \frac{5}{6} - 1 \\ = \frac{5}{6} - \frac{6}{6} \\ = - \frac{1}{6} [/tex]