Выполни вычитание

1. \(5\dfrac{8}{51}-3\dfrac{5}{17}=\) [ ];

2. \(4\dfrac{2}{9}-1\dfrac{17}{36}=\) [ ];

3. \(6\dfrac{2}{3}-2\dfrac{6}{7}=\) [ ];

4. \(3\dfrac{1}{6}-2\dfrac{3}{8}=\) [ ];

5. \(9\dfrac{7}{20}-4\dfrac{9}{25}=\) [ ];

6. \(7\dfrac{4}{15}-5\dfrac{5}{9}=\) [ ].