Odpowiedź:
2 i 1/3 - 2/3 = 1 i 4/3 - 2/3 = 1 i 2/3
4 i 1/4 - 3/4 = 3 i 5/4 - 3/4 = 3 i 2/4 = 3 i 1/2
7 i 3/7 - 4/7 = 6 i 10/7 - 4/7 = 6 i 6/7
11 i 2/9 - 4/9 = 10 i 11/9 - 4/9 = 10 i 7/9
7 i 3/5 - 2 i 4/5 = 6 i 8/5 - 2 i 4/5 = 4 i 4/5
7 i 3/10 - 2 i 7/10 = 6 i 13/10 - 2 i 7/10 = 4 i 6/10 = 4 i 3/5
6 i 3/8 - 3 i 5/8 = 5 i 11/8 - 3 i 5/8 = 2 i 6/8 = 2 i 3/4
9 i 3/11 - 7 i 6/11 = 8 i 14/11 - 7 i 6/11 = 1 i 8/11
