Praise be to Allaah.
Your father's estate is to be
divided between his two male sons, his wife and his mother, and the paternal
uncle does not get anything from your father's estate, and neither do his
(the uncle’s) sons or the paternal aunts, because they are prevented from
doing so by the presence of the male sons.
The mother gets one sixth,
the wife gets one eighth and the rest goes to the two male sons.
Your paternal uncle’s estate
is to be divided among his children, both male and female, and his wife and
his mother, and you and your paternal aunts do not get anything from the
estate of your paternal uncle.
So the mother gets one sixth,
the wife gets one eighth and the rest goes to the children, with each male
getting the share of two females.
Thus it is clear that your
grandmother has a share in the estate of your father, and a share in the
estate of your paternal uncle, namely one sixth from each. So her share of
the house is two sixths, i.e., one third. If your father or paternal uncle
had other wealth, apart from the house, then she takes her share of that
If the grandmother has died,
then her estate goes to her heirs who are: her three daughters, who get two
thirds, and the rest goes to the daughters of her two sons and their
brothers, with each male getting the share of two females.
Based on that, then one third
of the grandmother's estate is to be shared between the four males and the
And Allah knows best.