Ответ:
2. 9 17/166
3. 1.25
Пошаговое объяснение:
2. 5 1/8 * 16/41 * 5 1/2 + (13/17 + 4/5)* 1 2/83 = 9 17/166
1) 13/17 + 4/5 = 65/85 + 68/85 = 133/85
2) 5 1/8 * 16/41 = 41/8 * 16/41 = 2
3) 2 * 5 1/2 = 2 * 5.5 = 7.5
4) 133/85 * 1 2/83 = 133/85 * 85/83 = 133/83
5) 7.5 + 133/83 = 75/10 + 133/83 = 6225/830 + 1330/830 = 9 17/166
3. (5 8/9 : 1 17/36 + 1 1/4) * 5/21 = 1.25
1) 5 8/9 : 1 17/36 = 53/9 * 36/53 = 4
2) 4 + 1 1/4 = 5 1/4
3) 5 1/4 * 5/21 = 21/4 * 5/21 = 5/4 = 1.25