Question

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Answer 1

\(\left(\dfrac{2}{3}\cdot\dfrac{7}{5}-\dfrac{2}{5}\cdot\dfrac{2}{3}\right):\left(-\dfrac{1}{6}+\dfrac{10}{12}\right)\)
\(=\left(\dfrac{2}{3}\cdot\dfrac{7}{5}-\dfrac{2}{3}\cdot\dfrac{2}{5}\right):\left(-\dfrac{1}{6}+\dfrac{5}{6}\right)\)
\(=\dfrac{2}{3}\cdot\left(\dfrac{7}{5}-\dfrac{2}{5}\right):\left(-\dfrac{4}{6}\right)\)
\(=\dfrac{2}{3}\cdot1\cdot-\dfrac{3}{2}\)
\(=-\dfrac{2.3}{3.2}\)
\(=-1\)