3,(2) = 3 2/9
5,7(4) = 5 67/90
Пошаговое объяснение:
1. 3,(2) = (32-3)/9 = 29/9 = 3 2/9
29/9 = 29 : 9 = 3,222222 = 3,(2)
2. 5,7(4) = 5 (74-7)/90 = 5 67/90
5 67/90 = 517/90 = 517 : 90 = 5,74444444 = 5,7(4)
