Завдання 1101 - 1200 » 1138

Знайди значення виразу: 1) 1/8 – 5/12 – (–1/4) = 1/8 + (–5/12) + 1/4 = 3/24 + (–10/24) + 6/24 = – 1/24; 2) – 2/9 – 7/18 – (–1/6) = – 2/9 + (–7/18) + 1/6 = – 4/18 + (–7/18) + 3/18 = – 8/18 = – 4/9; 3) 1/12 – 7/18 – 4/9 + 5/6 = 1/12 + (–7/18) + (–4/9) + 5/6 = 3/36 + (–14/36) + (–16/36) + 30/36 = 3/36 = 1/12.