How is the inheritance divided among: a wife, three paternal half-brothers, a paternal half-sister, and a maternal half-sister?

If the deceased's heirs are limited to his wife, his sister from the mother's side, and his full-paternal brothers and sisters, with no other heirs, then his estate is divided as follows: The wife receives one-fourth due to the absence of children. The sister from the mother's side receives one-sixth as she is the sole maternal sibling. The remainder is then distributed by 'asabah (agnatic succession) among the full-paternal brothers and sisters, with the male receiving the share of two females. The fractional basis of the problem is twelve shares. The wife takes three shares, the sister from the mother's side takes two shares, and the remaining seven shares go to the full-paternal brothers and sisters, with each male receiving two shares and each female receiving one share.