Выбери верные ответы

Выясни, равны ли рациональные числа (поставь знак « \(=\) » или « \(\ne\) »):

а) \(\cfrac{15}{12}\) [ \(=\) | \(\ne\) ] \(\cfrac{5}{4}\) ;

б) \(\cfrac{-14}{21}\) [ \(=\) | \(\ne\) ] \(-\cfrac{2}{3}\) ;

в) \(\cfrac{6}{-8}\) [ \(=\) | \(\ne\) ] \(\cfrac{-15}{20}\) ;

г) \(\cfrac{-4}{-7}\) [ \(=\) | \(\ne\) ] \(\cfrac{8}{-14}\) ;

д) \(\cfrac{1}{2}\) [ \(=\) | \(\ne\) ] \(\cfrac{-10}{20}\) ;

е) \(\cfrac{-5}{20}\) [ \(=\) | \(\ne\) ] \(\cfrac{10}{-40}\) ;

ж) \(\cfrac{-6}{12}\) [ \(=\) | \(\ne\) ] \(\cfrac{3}{4}\) ;

з) \(\cfrac{5}{-25}\) [ \(=\) | \(\ne\) ] \(\cfrac{-3}{15}\) ;

и) \(\cfrac{-13}{26}\) [ \(=\) | \(\ne\) ] \(\cfrac{26}{-52}\) ;

к) \(\cfrac{-5}{4}\) [ \(=\) | \(\ne\) ] \(\cfrac{30}{-24}\) ;

л) \(\cfrac{50}{25}\) [ \(=\) | \(\ne\) ] \(\cfrac{-5}{2}\) ;

м) \(\cfrac{6}{18}\) [ \(=\) | \(\ne\) ] \(\cfrac{3}{9}\) .