The shares are six. You reconcile both of them and reduce them to their two concordant parts, becoming five shares, which equal two shares. Invert, and make the share five and the share two, and expand what you have, and it will become twenty-seven. Pay five to the legatee of the share, two shares to the other as half of the remainder of the third, and five to the other as a fourth of the remainder; fifteen remain, five for each son. This method is more concise. If you work by the second method, you take twenty-four, and subtract its sixth and a fourth of the remainder, fifteen remain, which is the share. Then you add a share to the number of the sons, and subtract its half and a fourth of what remains of it, three-eighths remain. Return them to the shares of the sons, it becomes three and three-eighths. Multiply them by twenty-four, it becomes eighty-one, and from it, it is valid. By algebra, it leads to that as well.

Section: If he leaves a mother, a sister, and a paternal uncle, and bequeaths to a man the equivalent of the paternal uncle's share and a sixth of what remains, and to another the equivalent of the mother's share and a fourth of what remains, and to another the equivalent of the sister's share and a third of what remains, then execute it by the inverted method, and say: the root of the issue is six. Begin with the last of the bequests and say: this is an estate whose third has gone, so add to it its half, three, and the equivalent of the sister's share, three; it becomes twelve. Then say: this is the remainder of an estate whose fourth has gone, so add to it its third, and the equivalent of the mother's share, six; it becomes eighteen. Then say: this is the remainder of an estate whose seventh has gone, so add to it its sixth, and the paternal uncle's share; it becomes twenty-two, and from it, it is valid.

Section: On exception, if he leaves three sons, and bequeaths the equivalent of one of their shares minus a fourth of the estate, then take the denominator of the fraction, four, and add to it a share, it becomes five; this is the share.