Odpowiedź:
5,4 + 3 i 1/3 = 5 i 4/10 + 3 i 1/3 = 5 i 12/30 + 3 i 10/30 = 8 i 22/10 = 10 i 2/10 = 10 i 1/5
3 i 1/5 * 2,25 = 16/5 * 2,25 = 3,2 * 2,25 = 7,2
6,4 * 5/8 = 6 i 4/10 * 5/8 = 64/10 * 5/8 = 8/2 = 4
2 i 5/6 : 3,4 = 2 i 5/6 : 3 i 4/10 = 17/6 : 34/10 = 17/6 * 10/34 = 5/6
3 i 3/4 * 1,2 + 1,5 : 2 i 2/5 - (1/2)³ = 15/4 * 12/10 + 15/10 : 12/5 - 1/8 = 9/2 + 15/10 * 5/12 - 1/8 = 9/2 + 5/8 - 1/8 = 36/8 + 5/8 - 1/8 = 41/8 - 1/8 = 40/8 = 5
