2 11\15+x=5целых2\15 х-2 5\16=4целых13\16

1. 2 11\\15 + х = 5 2\\15;х = 5 2\\15 - 2 11\\15;х = 12/5;х = 2 2/5;х = 2,4.Ответ: х = 2,4.Проверка:2 11\\15 + 2,4 = 5 2\\15;5 2\\15 = 5 2\\15.2. х - 2 5\\16 = 4 13\\16;х = 4 13\\16 + 2 5\\16;х = 7 1/8;х = 7,125.Ответ: х = 7,125.7,125 - 2 5\\16 = 4 13\\16;4 13\\16 = 4 13\\16.