2 6/6 : 10/7 = 3 : 10/7 = 3 × 7/10 = 21/10 = 2 1/10

Ответ : 2 1/10

Объяснение:

2. 6/6 : 10/7 = (2*6 + 6)/6 : 10/7 = 18/6 : 10/7 = 3/1 : 10/7 = 3/1 * 7/10 = 21/10 = 2. 1/10 или 2,1