Решите уравнение: 1 7/8 : 8 1/3 = х : 4/9

15/8 / 25/3 = x/ 4/915/8 * 3/25 = x / 4/99/40 =x / 4/9 x= 9/40 * 4/9x= 1/10 проверяем:  15/8 * 3/25 = 1/10 / 4/9 9/40 = 1/10 *9/4 9/40 = 9/40