Ta có:
481abc : abc = 1481
=> 481.1000 + abc = 1481abc
=> 481000 = 1480abc
=> abc =481000/1480 = 325
Vậy abc = 325
481abc : abc = 1481
=> 481.1000 + abc = 1481abc
=> 481000 = 1480abc
=> abc =481000/1480 = 325
* thử lại: 481325/325=1481
481abc:abc=1481
(481000+abc):abc=1481
481000:abc+abc:abc=1481
481000:abc+1=1481
481000:abc=1481-1
481000:abc=1480
abc=481000:1480
=> abc=325