з/10...2/5 , 6/8...7/8, 1/2...5/10, 1/8...5/8, 4/6...7/9 какой знак <>

3/10 ... 2/5 2/5 = 4/10 3 < 4 Ответ 3/10 < 2/ 5---------------------------6/8 < 7/8 -------------------------------1/2 .... 5/10 1/2 = 5/10 5/10 = 5/10 Ответ 1/2 = 5/10 -------------------------------1/8 < 5/8 --------------------------------------4/6 .... 7/9 4/6 = 12/18 7/9 = 14/18 12 < 14 Ответ 4/6 < 7/9 ----------------------------------------------