Вправи 1201 - 1300 » 1268

Обчисли: 1) (8 – 53/17) + 33/17 = (717/17 – 53/17) + 33/17 = 214/17 + 3 3/17 = 517/17 = 6 2) 183/19 – (710/19 + 311/19) = 183/19 – 1021/19 = 183/19 – 112/19 = 71/19 3) (78/11 + 45/11) – (32/11 – 14/11) = 1113/11 – (213/11 – 14/11)= 1113/11 – 19/11 = 104/11 4) (34/9 + 55/9) – 47/11 = 89/9 – 47/11 = 9 – 47/11 = 811/11 – 47/11 = 44/11 5) (104/15 – 211/15) – (16/11 + 25/11) = (919/15 – 211/15) – 311/11 = 78/15 – 4 = 38/15