21целая7/9делим4целая2/3-1 Нужео плиз
21 7/9 : 4 2/3 - 1 = 3 2/3 1) 21 7/9 : 4 2/3 = 196/9 : 14/3 = 196/9 * 3/14 = 14/3 = 4 2/3 2) 4 2/3 - 1 = 3 2/3