а) 4/7 и 4/124/7 = 48/844/12 = 28/8448/84 > 28/84Итак, 4/7 > 4/12
б) 6/13 и 6/96/13 = 54/1176/9 = 78/11754/117 < 78/117Итак, 6/13 < 6/9
в) 11/15 и 11/1711/15 = 187/25511/17 = 187/255187/255 = 187/255Итак, 11/15 = 11/17
г) 25/37 и 25/3425/37 = 850/125825/34 = 850/1190850/1258 < 850/1190Итак, 25/37 < 25/34
а) 4/7 и 4/12
4/7 = 48/84
4/12 = 28/84
48/84 > 28/84
Итак, 4/7 > 4/12
б) 6/13 и 6/9
6/13 = 54/117
6/9 = 78/117
54/117 < 78/117
Итак, 6/13 < 6/9
в) 11/15 и 11/17
11/15 = 187/255
11/17 = 187/255
187/255 = 187/255
Итак, 11/15 = 11/17
г) 25/37 и 25/34
25/37 = 850/1258
25/34 = 850/1190
850/1258 < 850/1190
Итак, 25/37 < 25/34