1: \(=\dfrac{15}{34}+\dfrac{19}{34}+\dfrac{1}{3}+\dfrac{2}{3}-1-\dfrac{15}{17}=1-\dfrac{15}{17}=\dfrac{2}{17}\)
2: \(=\dfrac{11}{4}-\dfrac{25}{9}+\dfrac{3}{2}+5+\dfrac{1}{2}\)
\(=\dfrac{251}{36}\)
3: \(=\dfrac{-5}{3}\left(16+\dfrac{2}{7}-28-\dfrac{2}{7}\right)=\dfrac{-5}{3}\cdot\left(-12\right)=20\)
6: \(=\dfrac{3}{4}+\dfrac{1}{-20}=\dfrac{15-1}{20}=\dfrac{14}{20}=\dfrac{7}{10}\)
5: \(=\dfrac{2}{7}\left(11+\dfrac{5}{6}-25-\dfrac{5}{6}\right)+14=-14\cdot\dfrac{2}{7}+14=-4+14=10\)
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