Вычислите: 2+1-11/14*13/22-3-2/7:46/63

2 + 1 - (11/14 * 13/22) - (3 + 2/7 * 63/46) = 3 - (1/14 * 13/2) - (3 + 2/7 * 63/46) = 3 - 13/28 - (3 + 18/23) = 3 - 13/28 - 3 - 18/23 = -13/28 - 18/23 = (-13*23 - 18*28) / (28*23) = (-299 - 504) / 644 = -803/644 = -1 159/644