(8 3/17 - 7 15/17) + 3 15/17 = 5/17 + 3 15/17 = 3 20/17 = 4 3/17
Или второй вариант
8 3/17 - 7 15/17 + 3 15/17 = 8 3/17 - 4 = 4 3/17
(8 3/17 - 7 15/17) + 3 15/17 = 5/17 + 3 15/17 = 3 20/17 = 4 3/17
Или второй вариант
8 3/17 - 7 15/17 + 3 15/17 = 8 3/17 - 4 = 4 3/17