'Fifth' in the Bible

Let them say openly what they have done; and make payment for the wrong done, with the addition of a fifth part, and give it to him to whom the wrong was done.

On the fifth day Shelumiel, the son of Zurishaddai, chief of the children of Simeon:

And on the fifth day nine oxen, two male sheep, fourteen he-lambs of the first year, without any mark:

And Aaron the priest went up into the mountain at the order of the Lord, and came to his death there, in the fortieth year after the children of Israel had come out of the land of Egypt, in the fifth month, on the first day of the month.