Inheritance: paternal grandfather, 2 full brothers, wife

Worked out under the Maliki school, with an example of F CFA 10,000,000. The fractions hold whatever the amount.

Division of the estate of a man

Maliki school · Net to divide: F CFA 10,000,000

Heir	Share	Parts	%	Amount
WifeFixed share		1	25%	F CFA 2,500,000
Paternal grandfatherResiduary		1	25%	F CFA 2,500,000
2 full brothersResiduary		2	50%	F CFA 5,000,000F CFA 2,500,000 each
Total	1	4	100%	F CFA 10,000,000

Base of the case (asl al-mas'ala)4Final base (after correction)4

Every heir receives a whole number of parts out of 4.

In the order a scholar would set it out: who is excluded, then each share, then the final adjustment.

Special caseThe grandfather with siblings
Zayd ibn Thabit's doctrine, followed by Malikis, Shafi'is and Hanbalis: the grandfather takes the best of three options (sharing, a third of the remainder, a sixth of the whole).
Zayd ibn Thabit, Muwatta Malik, Kitab al-Fara'idFamily Code art. 616Family Code art. 622
Wife
One quarter, as the deceased left no descendant. Several wives share it equally.
Quran 4:12Family Code art. 609
Paternal grandfather
He shares with the siblings as if he were one of them (muqasama), which is his best option here.
Zayd ibn Thabit, Muwatta Malik, Kitab al-Fara'idFamily Code art. 616Family Code art. 622Family Code art. 621
2 full brothers
They share with the grandfather: two parts per brother, one per sister.
Zayd ibn Thabit, Muwatta Malik, Kitab al-Fara'idFamily Code art. 579Family Code art. 621

وَلَكُمْ نِصْفُ مَا تَرَكَ أَزْوَاجُكُمْ إِن لَّمْ يَكُن لَّهُنَّ وَلَدٌ

Quran 4:12 · "For you is half of what your wives leave if they have no child…" Shares of spouses and maternal siblings.

For information only. Have it checked by a notary or a qualified scholar. This assumes no heir is missing, unborn or under an impediment.