Пошаговое объяснение:
(13/12 +5/4) *75/56 + 21/8 * 10/3 * 10/9 = (13/12 + 15/12) *75/56 + 7/8*100/9 = 28/12 * 75/56 + 175/18 = 51/4 + 175/18 = 459/36 + 175/36= 634/36=17 22/36= 17 11/18
Пошаговое объяснение:
(13/12 +5/4) *75/56 + 21/8 * 10/3 * 10/9 = (13/12 + 15/12) *75/56 + 7/8*100/9 = 28/12 * 75/56 + 175/18 = 51/4 + 175/18 = 459/36 + 175/36= 634/36=17 22/36= 17 11/18