Вправи 1001 - 1100 » 1098

1) 7 + 2/13 = 72/13 2) 4/9 + 5 = 54/9 3) 78/13 + 2/13 = 710/13 4) 4 + 51/9 = 91/9 5) 71/19 + 514/19 = (7 + 5) + (1/19 + 14/19) = 1215/19 6) 84/11 + 57/11 = (8 + 5) + (4/11 + 7/11) – 13 + 1 = 14