Вправи 1201 - 1300 » 1259
Виконай дію: 1) 814/17 + 13/17 = 8 + 27/17 = 8 + 110/17 = 910/17 2) 920/23 + 318/23 = (9 + 3) + (20/23 + 18/23) = 12 + 38/23 = 12 + 115/23 = 1315/23 3) 182/13 – 27/13 = (17 + 1 + 2/13) – 27/13 = 1715/13 – 27/13 = 158/13 4) 125/11 – 810/11 = 1116/11 – 810/11 = 36/11 5) 91/13 – 410/13 = 814/13 – 410/13 = 44/13 6) 52/29 – 17/29 = 431/29 – 17/29 = 414/29