8 целых 13/13
6 целых 5/13 = 6.384615384612 целых 8/13 = 2.61538461538
6.38461538461 + 2.61538461538 = 8.99999999999
8.99999999999 = 8 целых 13/13
8 целых 13/13
6 целых 5/13 = 6.38461538461
2 целых 8/13 = 2.61538461538
6.38461538461 + 2.61538461538 = 8.99999999999
8.99999999999 = 8 целых 13/13