Ответ:

Пошаговое объяснение:

1. 8/9 + 1/9 = 9/9 = 1

2. 3/5 + 2/5 = 5/5 = 1

3. 10/19 + 9/19 = 19/19 = 1

4.  8/13 + 5/13 = 13/13 = 1

5.  41/50 + 9/50 = 50/50 = 1

6.  58/69 + 11/69 = 69/69 = 1