мене решить эту задачу и пример❤️​

Пошаговое объяснение:

Пример:

1) 12 : 6/7 = 12 * 7/6 = 2 * 7/1 = 14/1 = 14

2) 1/6 * 4/21 = 1/3 * 2/21 = 2/63

3) 6. 3/4 : 9 = 27/4 * 1/9 = 3/4 * 1/1 = 3/4

4) 2/63 + 3/4 = 8/252 + 189/252 = 197/252

5) 3. 1/2 : 4. 2/3 = 7/2 : 14/3 = 7/2 * 3/14 = 1/2 * 3/2 = 3/4

6) 14 - 197/252 =

13. 252/252 - 197/252 =

13. 55/252

7) 13. 55/252 + 3/4 =

13. 55/252 + 189/252 =

13. 244/252 = 13. 61/63