Вычисли

а) \(\dfrac{10}{9}-\dfrac{8}{9}=\) [ ];

б) \(\dfrac{3}{5}-\dfrac{1}{5}=\) [ ];

в) \(\dfrac{9}{10}-\dfrac{2}{10}=\) [ ];

г) \(\dfrac{5}{13}-\dfrac{1}{13}=\) [ ];

д) \(\dfrac{7}{17}-\dfrac{2}{17}=\) [ ];

е) \(\dfrac{8}{15}-\dfrac{1}{15}=\) [ ].