13/17 = 34/39,
39 : 13/17,
= 39/1 * 17/13,
= 51,
13/17 * 51 = 39,
13 * 3 = 39,
39 = 39
ответ: 13/17 <
34/39
13/17 = 34/39,
39 : 13/17,
= 39/1 * 17/13,
= 51,
13/17 * 51 = 39,
13 * 3 = 39,
39 = 39
ответ: 13/17 <
34/39