Odpowiedź:
1/2 + 1/2 = 2/2 = 1
5 i 1/3 + 7 i 3/3 = 12 i 4/3 = 13 i 1/3
5/6 + 1 i 2/7 = 35/42 + 1 i 12/42 = 1 i 47/42 = 2 i 5/42
2 i 3/5 + 1 i 3/4 = 2 i 12/20 + 1 i 15/20 = 3 i 27/20 = 4 i 7/20
4 i 1/5 - 1 i 2/3 = 4 i 3/15 - 1 i 10/15 = 3 i 18/15 - 1 i 10/15 = 2 i 8/15
