Заполни пропуски

Приведи данные дроби к наименьшему общему знаменателю.

1. \(\dfrac{1}{4}\) и \(\dfrac{1}{14}\) ;

\(\dfrac{1}{4}=\) [ ]; \(\dfrac{1}{14}=\) [ ].

2. \(\dfrac{4}{15}\) и \(\dfrac{7}{10}\) ;

\(\dfrac{4}{15}=\) [ ]; \(\dfrac{7}{10}=\) [ ].

3. \(\dfrac{4}{9}\) и \(\dfrac{11}{12}\) ;

\(\dfrac{4}{9}=\) [ ]; \(\dfrac{11}{12}=\) [ ].

4. \(\dfrac{3}{8}\) и \(\dfrac{5}{9}\) ;

\(\dfrac{3}{8}=\) [ ]; \(\dfrac{5}{9}=\) [ ].