All perfect praise be to Allaah, the Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad, sallallaahu ‘alayhi wa sallam, is His Slave and Messenger.
If the heirs are only those mentioned in the question (and the deceased did not leave any other heir), then the two daughters get two-thirds of the inheritance, the wife gets one-eighth and the mother gets one-sixth. After everyone takes his/her legal share, the remainder will be given to the full-sister by Ta’seeb (by virtue of having a paternal relation with the deceased and not having an allotted share, so she gets what is left after the allotted shares have been distributed); because the sisters (i.e. the full sisters and the half sisters from the father) inherit with the daughters by Ta’seeb.
Therefore, the inheritance should be divided into 24 shares, the two daughters get two-thirds, which is 16 shares, so each one of them gets 8 shares, the mother gets one-sixth, which is 4 shares, the wife gets one-eighth, which is 3 shares, and the full sister gets 1 share.
It should be noted that the matter of inheritance is a very complex and serious issue, so a mere Fatwa which is an answer issued according to the question is not enough. Rather, the matter should be taken to an Islamic court to look into the case, or it should be presented orally (in person) to the scholars in case there are no Islamic courts. It might be that there is an heir who would not be known except after investigation, and there might also be a will, debts, or other dues that are not known to the heirs. It is known that these rights come in priority over the right of the heirs. Therefore, the inheritance should not be divided without resorting to an Islamic court, if available, in order to fulfill the interests of both the living and the dead.
Allaah knows best.