Complex sentence: Although the Ijaw are now primarily Christians (95% profess to be), with Roman Catholicism and Anglicanism being the varieties of Christianity most prevalent among them, they also have elaborate traditional religious practices of their own.
Split into simpler sentences: Although the Ijaw are now primarily Christians (95% profess to be), with Roman Catholicism and Anglicanism being the varieties of Christianity most prevalent among them. The Ijaw also have elaborate traditional religious practices of their own.