Odpowiedź :
Odpowiedź:
(2/3)² * 3 - 1/2 * 0,2 = 4/9 * 3 - 1/2 - 0,2 = 12/9 - 1/2 - 1/5 = 24/18 - 9/18 - 1/5 = 15/18 - 1/5 = 75/90 - 18/90 = = 57/90
1/6 * 4 + 2/3 : 1 i 1/2 = 4/6 + 2/3 * 2/3 = 4/6 + 4/9 = 12/18 + 8/18 = 20/18 = 1 i 2/18 = 1 i 1/9
1 i 1/2 + 2 i 1/8 * 4 = 1 i 1/2 + 17/8 * 4 = 1 i 1/2 + 17/2 = 1 i 18/2 = 10