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Efectuati -4/9:(2/3:8/,81)?

Răspuns :

BBC1234
[tex] - \frac{\frac{4}{9} }{ \frac{ \frac{2}{3} }{ \frac{8 \times 9}{81} } } = - \frac{4}{9} \div ( \frac{2}{3} \times \frac{81}{81} ) = - \frac{4}{9} \div \frac{2}{3} = - \frac{4 \times 3}{9 \times 2} = - \frac{12}{18} = - \frac{2}{3} [/tex]

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