Сравните дроби : 5/6 и 7/12,3/8 и 17/40.
5/6 больше 7/12, 3/8 меньше 17/40
5/6=10/12 и7/12.........10/12> 7/12...........3/8=15/40и 17/40.......15/40 <17/40