Question

calculați exercițiul din poză. dau coroana​

Answer 1

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Answer 2

Răspuns:

$(( - \frac{3}{5} ) \times 2.5 + \frac{5}{6} ) \div \frac{28}{42} + 1.1 + \frac{1}{10} \times \sqrt{81} \\ ( - \frac{3}{5} \times \frac{25}{10} + \frac{5}{6} ) \div \frac{2}{3} + 1.1 + \frac{1}{10} \times 9 \\ ( - \frac{15}{10 } + \frac{5}{6} ) \div \frac{2}{3} + 1.1 + \frac{9}{10} \\ ( \frac{ - 90 + 50}{60} ) \div \frac{2}{3} + 1.1 + \frac{9}{10} \\ \frac{70}{60} \times \frac{3}{2} + \frac{11}{10} + \frac{9}{10} = \\ \frac{21}{12} + \frac{20}{10} = \frac{21}{12} + \frac{2}{1} = \frac{21 + 24}{12} = \frac{45}{12} = \frac{15}{4}$