Odpowiedź:
4 i 1/2 : 6 + 3 i 2/3 = 9/2 * 1/6 + 3 i 2/3 = 9/12 + 3 i 2/3 = 9/12 + 3 i 8/12 = 3 i 17/12 = 4 i 5/12
(5 i 1/3 - 2 i 2/5) : 2 = (5 i 5/15 - 2 i 6/15) : 2 = (4 i 20/15 - 2 i 6/15) : 2 = 2 i 14/15 : 2 = 44/15 * 1/2 = 22/15 = 1 i 7/15
(5 i 1/2 - 3 i 1/4)² : 7 = (5 i 2/4 - 3 i 1/4)² : 7 = (2 i 1/4)² : 7 = (9/4)² : 7 = 81/16 * 1/7 = 81/112 = 1 i 31/112
