Выполните действие 6 9/13 +(4 10/13-2 12/13

Question

Выполните действие 6 9/13 +(4 10/13-2 12/13

Answer 1

6 9/13 + (4 10/13 - 2 12/13) = (6 9/13 + 4 10/13) - 2 12/13 = 10 19/13 - 2 12/13 = 8 7/13

Answer 2

 = 87/13 + (62/13 - 38/13) = 87/13 + 24/13 = 111/13 = 8 7/13

Comments

111/13 = 8 7/13 - правильный ответ