Вычислите: 5 целых 5/6-31/48; 6целых4/7-2целые37/77 - вопрос №5837804556314864723777 от rage13371 22.05.2020 09:22

Question

Математика: Вычислите: 5 целых 5/6-31/48; 6целых4/7-2целые37/77

rage13371 · Answer

5 5/6 - 31/48=35/6 - 31/48 = (35 × 8 - 31 × 1)/48 = 280/48 - 31/48 = 249/48 = 83/16 = 5 3/16
6 4/7 - 2 37/77 = 46/7 - 191/77 =(46 × 11 - 191 × 1)/77 = 506/77 - 191/77 = 315/77 = 45/11 = 4 1/11