9/16 + t = 4 11/16
t = 4 11/16 - 9/16
t = 4 2/16
t = 4 целых 1/8
Проверка: 9/16 + 4 2/16 = 4 целых 11/16
9/16 + t = 4 11/16
t = 4 11/16 - 9/16
t = 4 2/16
t = 4 целых 1/8
Проверка: 9/16 + 4 2/16 = 4 целых 11/16