What is the ruling on the prayer of a woman who has not memorized much of the Qur’an and has not learned it, so how should she perform her prayer?

Reciting Surah (definition) Al-Fatihah in every rak'ah is sufficient. It is recommended to add short surahs or verses to it in the first two rak'ahs of Dhuhr, Asr, Maghrib, and Isha prayers, and in the two rak'ahs of Fajr prayer. As for the third rak'ah of Maghrib, and the third and fourth rak'ahs of Dhuhr, Asr, and Isha, reciting Al-Fatihah alone is sufficient.