Odpowiedź:
1 i 5/6 + 2 i 2/3 + 1 i 4/9 = 1 i 15/18 + 2 i 12/18 + 1 i 8/18 = 4 i 35/18 = 5 i 17/18
1 i 3/8 + 2 i 1/3 + 1 i 5/6 = 1 i 9/24 + 2 i 8/24 + 1 i 20/24 = 4 i 37/24 = 5 i 13/24
2 i 7/10 + 1 i 3/4 + 4/5 = 2 i 14/20 + 1 i 15/20 + 16/20 = 3 i 45/20 = 5 i 5/20 = 5 i 1/4
