Odpowiedź :
Odpowiedź:
(2 i 1/5 + 11/10) * 2 = (2 i 2/10 + 11/10) * 2 = 2 i 13/10 * 2 = 33/10 * 2 = 66/10 = 6 i 6/10 = 6 i 3/5
(1 i 3/4 * 5 - 8 i 1/2) * 3 = (7/4 * 5 - 8 i 1/2) * 3 = (35/4 - 8 i 1/2) * 3 = (8 i 3/4 - 8 i 1/2) * 3 = (8 i 3/4 - 8 i 2/4) * 3 = 1/4 * 3 = 3/4