Odpowiedź:
1/4 + 1/2 + 1/6 = 3/12 + 6/12 + 2/12 = 11/12
3 i 2/3 + 1 i 2/5 + 1 i 5/6 = 3 i 20/30 + 1 i 12/30 + 1 i 25/30 = 5 i 57/30 = 6 i 27/30 = 6 i 9/10
10 - (5 i 1/8 - 1 i 2/3) = 10 - (5 i 3/24 - 1 i 16/24) = 10 - (4 i 27/24 - 1 i 16/24) = 10 - 3 i 11/24 = 9 i 24/24 - 3 i 11/24 = 6 i 13/24
