Пошаговое объяснение:
1) 2/3 - 5/18 = 12/18 - 5/18 = 7/18
2) 7/18 * 2. 4/7 = 7/18 * 18/7 = 1/1 * 1/1 = 1
3) 12. 3/4 * 4/17 = 51/4 * 4/17 = 51/17 = 3
4) 3 * 5. 4/9 = 3 * 49/9 = 1 * 49/3 = 49/3 = 16. 1/3
5) 16. 1/3 + 1 = 17. 1/3
Пошаговое объяснение:
1) 2/3 - 5/18 = 12/18 - 5/18 = 7/18
2) 7/18 * 2. 4/7 = 7/18 * 18/7 = 1/1 * 1/1 = 1
3) 12. 3/4 * 4/17 = 51/4 * 4/17 = 51/17 = 3
4) 3 * 5. 4/9 = 3 * 49/9 = 1 * 49/3 = 49/3 = 16. 1/3
5) 16. 1/3 + 1 = 17. 1/3