Ответ Автор - isom 15 4/9 - 4/9 * 3 3/8 = 15 4/9 - 4/9 * 27/8 = 15 4/9 - 3/2 = 15 4/9 - 1 9/8 = 14 26/18 - 1 9/18 = 13 17/18