5.444 Сравните дроби: а) 1/5 и 3/25; б) 3/4 и 11/12; в) 3/4 и 13/20; г) 4/9 и 16/36; д) 3/8 и 7/12; е) 7/12 и 7/16.

a) 1/5 и 3/25 -> 5/25 и 3/25 -> 1/5 > 3/25 б) 3/4 и 11/12 -> 9/12 и 11/12 -> 3/4 < 11/12 в) 3/4 и 13/20 -> 15/20 и 13/20 -> 3/4 > 13/20 г) 4/9 и 16/36 -> 16/36 и 16/36 -> 4/9 = 16/36 д) 3/8 и 7/12 -> 9/24 и 14/24 -> 3/8 < 7/12 е) 7/12 и 7/16 -> 28/48 и 21/48 -> 7/12 > 7/16