'Half' in the Bible

So Paul lived there for a year and a half and continued to teach the word of God among the people there.

But when Paul saw that half of them were Sadducees and the rest Pharisees, he said in the Sanhedrin, Brothers, I am a Pharisee, and the son of Pharisees: I am here to be judged on the question of the hope of the coming back from the dead.