Применяя распределительное свойство умножения, запишите результаты; промежуточные вычисления выполняйте устно. (1 + 1/2) * 4 = (8 + 4) * 1/4 = (7 - 2/5) * 5 = (6 - 2/3) * 1/2 = (1/3 + 1/4) * 12 = (1/5 + 1) * 5/6 = (5/6 - 1/8) * 24 = (7/10 - 3/5) * 1/2 =

(1 + 1/2) * 4 = 1 * 4 + 1/2 * 4 = 4 + 2 = 6 (8 + 4) * 1/4 = 8 * 1/4 + 4 * 1/4 = 2 + 1 = 3

(7 - 2/5) * 5 = 7 * 5 - 2/5 * 5 = 35 - 2 = 33 (6 - 2/3) * 1/2 = 6 * 1/2 - 2/3 * 1/2 = 3 - 1/3 = 2 2/3

(1/3 + 1/4) * 12 = 1/3 * 12 + 1/4 * 12 = 4 + 3 = 7 (1/5 + 1) * 5/6 = 1/5 * 5/6 + 1 * 5/6 = 1/6 + 5/6 = 1

(5/6 - 1/8) * 24 = 5/6 * 24 - 1/8 * 24 = 20 - 3 = 17 (7/10 - 3/5) * 1/2 = 7/10 * 1/2 - 3/5 * 1/2 = 7/20 -

3/10 = 1/20