Вправи 1201 - 1300 » 1248

Обчисли суму: 1) 9 + 2/3 = 92/3 2) 7/11 + 4 = 47/11 3) 52/19 + 4/19 = 56/19 4) 4 + 52/7 = 92/7 5) 72/17 + 43/17 = (7 + 4) + (2/17 + 3/17) = 115/17 6) 54/11 + 22/11 = (5 + 2) + (4/11 + 2/11)= 76/11