Ответ Автор - maymr 9/16 * 5/12 - 9/16 * (-5/12) = = 9/16 * (5/12 - (-5/12)) = = 9/16 * (5/12 + 5/12) = = 9/16 * 10/12 = = 15/32Ответ: 15/32