Odpowiedź:
3/8 + 5/6 - 7/12 = 9/24 + 20/24 - 14/24 = 29/24 - 14/24 = 15/24
2 i 1/6 - 1 i 1/2 + 1/8 = 2 i 4/24 - 1 i 12/24 + 3/24 = 1 i 28/24 - 1 i 12/24 + 3/24 = 16/24 + 3/24 = 19/24
5 i 1/14 - 2 i 1/4 - 1 i 3/7 = 5 i 1/14 - 2 i 7/14 - 1 i 6/14 = 4 i 15/14 - 2 i 7/14 - 1 i 6/14 = 2 i 8/14 - 1 i 6/14 = 1 i 2/14 = 1 i 1/7
