If the devise subject to reduction should consist of real property, which cannot be conveniently divided, it shall go to the devisee if the reduction does not absorb one-half of its value; and in a contrary case, to the compulsory heirs; but the former and the latter shall reimburse each other in cash for what respectively belongs to them.
The devisee who is entitled to a legitime may retain the entire property, provided its value does not exceed that of the disposable portion and of the share pertaining to him as legitime. (821)