Question

[(⅔-⅑)+13(⅔-1)²]:[(½-1):2½]=

Answer 1

$\: (( \frac{2}{3} \: - \: \frac{1}{9} ) \: + \: 13( \frac{2}{3} \: - \: 1) ^{2} ) \: \div \: ( \frac{1}{2} ) \: \div \: 2 \frac{1}{2}$

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$( \frac{5}{9} \: + \: 13( - \frac{1}{2} ) ^{2} ) \: \div \: \frac{1}{2} \: \div \: 2 \: \times \: \frac{1}{2}$

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$( \frac{5}{9} \: + \: 13( \frac{1}{2} ) ^{2} ) \: \div \: \frac{1}{2} \: \div \: 2 \: \times \: \frac{1}{2}$

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$( \frac{5}{9} \: + \: 13 \: \times \: \frac{1}{9} ) ^{2} ) \: \div \: \frac{1}{2} \: \div \: 2 \: \times \: \frac{1}{2}$

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$( \frac{5}{9} \: + \: \frac{13}{9} ) \: \div \: \frac{1}{2} \: \div \: 2 \: \times \: \frac{1}{2}$

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$2 \: \div \: \frac{1}{2} \: \div \: 2 \times \: \frac{1}{2}$

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$1 \: \div \: \frac{1}{2} \: \times \: \frac{1}{2}$

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$2 \: \times \: \frac{1}{2}$

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$1$

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