Вычисли устно и запиши результат

а) \(\dfrac{1}{2} : \dfrac{3}{5} =\) [ ],

\(4 : \dfrac{3}{5} =\) [ ],

\(\dfrac{3}{5} : 4 =\) [ ];

б) \(\dfrac{2}{5} : \dfrac{3}{7} =\) [ ],

\(2 : \dfrac{3}{7} =\) [ ],

\(\dfrac{3}{7} : 2 =\) [ ];

в) \(\dfrac{4}{7} : \dfrac{1}{3} =\) [ ],

\(\dfrac{4}{7} : 5 =\) [ ],

\(5 : \dfrac{4}{7} =\) [ ];

г) \(\dfrac{3}{4} : \dfrac{1}{5} =\) [ ],

\(\dfrac{3}{4} : 7 =\) [ ],

\(7 : \dfrac{3}{4} =\) [ ].