3 1\8 * (-1 3\5) *( -4\15) * (-х) = 2 2\17 * 3 7\9 * (-15\16)

Решим пример по действиям:

1) 3 1/8 = (3 * 8 + 1)/8 = 25/8;

2) 1 3/5 = (1 * 5 + 3)/5 = 8/5;

3) 25/8 * (-8/5) * (-4/15) = 25/8 * 8/5 * 4/15 = (25 * 8 * 4)/(8 * 5 * 15) = (5 * 4)/15 = 4/3;

4) 2 2/17 = (2 * 17 + 2)/17 = 36/17;

5) 3 7/9 = (3 * 9 + 7)/9 = 34/9;

6) 36/17 * 34/9 * (- 15/16) = - (36 * 34 * 15)/(17 * 9 * 16) = - (9 * 2 * 5)/(3 * 4) = - 15/2;

7) 4/3 * (- х) = - 15/2;

4/3 * х = 15/2;

х = 15/2 * 3/4 = (15 * 3)/(2 * 4) = 45/8.

Ответ: х = 45/8.