Выполни действия. 1.1/4 ×2/5-1/3
1 1/4*2/5=1/2 1/2-1/3= 3/6-2/6=1/6 Ответ: 1/6
1 1/4 * 2/5 - 1/3 = 5/4 * 2/5 - 1/3 = 1/2 - 1/3 = (3-2)/6 = 1/6