How is the inheritance divided among 5 grandsons and 3 wives of the deceased?

If the deceased left behind only his three wives and grandsons, the wives inherit one-eighth due to the presence of a lineal descendant (heir of the first degree), and this is divided equally among them. The remainder goes to the grandsons by ta’sib (residuary inheritance), divided equally among them. Thus, the estate is divided into one hundred and twenty shares. The wives take fifteen shares (five for each), and each grandson takes twenty-one shares. It should be noted that inheritance matters are serious and require consulting Sharia courts or directly speaking with scholars to verify all heirs, debts, and bequests.