Решите СРОЧНО 5 класс (5/6-2/3) : 8/9
( 5/6 - 2/3) : 8/9= 1/6 : 8/9 = 3/16 ....................................................
5/6 - 2/3 = (5-4)/6 = 1/6 1/6 : 8/9 = 1/6 * 9/8 = 3/16