а) 1 1/5 3 + 4/5 3 = (6/5 3) + (12/5) = 18/5 + 12/5 = 30/5 = 6б) 2 4/5 3 - 4/5 3 = (14/5 3) - (4/5 3) = 42/5 - 12/5 = 30/5 = 6в) 2 4/5 5/6 + 6 1/5 5/9 = (14/5 5/6) + (31/5 * 5/9) = 70/30 + 155/45 = 233/30 ≈ 7.767.
а) 1 1/5 3 + 4/5 3 = (6/5 3) + (12/5) = 18/5 + 12/5 = 30/5 = 6
б) 2 4/5 3 - 4/5 3 = (14/5 3) - (4/5 3) = 42/5 - 12/5 = 30/5 = 6
в) 2 4/5 5/6 + 6 1/5 5/9 = (14/5 5/6) + (31/5 * 5/9) = 70/30 + 155/45 = 233/30 ≈ 7.767.