Sayyiduna Abdullah (may Allah be pleased with him) said regarding a daughter, a sister and a grandfather: It is from four shares: a half, that is two shares, for the daughter, one share for the grandfather and one share for the sister. If there are two sisters, then from eight: a half, that is four shares, for the daughter, two shares for the grandfather and one share each for the two sisters. If there are three sisters, then from ten: a half, that is five, for the daughter, two shares for the grandfather, and the remaining three shares one each for the three sisters.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الفرائض / 12444