Odpowiedź:
5/6 + 2 i 1/9 = 15/18 + 2 i 2/18 = 2 i 17/18
1 i 2/5 + 2 i 3/4 = 1 i 8/20 + 2 i 15/20 = 3 i 23/20 = 4 i 3/20
2/15 + 3 i 1/6 = 4/30 + 3 i 5/30 = 3 i 9/30 = 3 i 3/10
5 i 5/12 + 1 i 4/9 = 5 i 15/36 + 1 i 16/36 = 6 i 31/36
4 i 7/8 + 7 i 5/6 = 4 i 21/24 + 7 i 20/24 = 11 i 41/24 = 12 i 17/24
13 i 1/15 + 6 i 2/25 = 13 i 5/75 + 6 i 6/75 = 19 i 11/75
