2 Bible Verses about Fractions, One Tenth

For this Melchisedec, king of Salem, priest of the most high God, who met Abraham returning from the slaughter of the kings, and blessed him, to whom also Abraham gave a tenth of all, being, first, by interpretation, King of righteousness, and then, also, King of Salem, which means King of peace, without father, without mother, without genealogy, having neither beginning of days, nor end of life, but being made to resemble the Son of God, remains a priest forever.read more.
Now consider how great this man was, to whom even the patriarch Abraham gave a tenth of the spoils. And those of the sons of Levi, who receive the office of priesthood, have a commandment to take tithes of the people according to the law, that is, of their brethren, though they come out of the loins of Abraham: but he who does not count his genealogy from them, received tithes from Abraham, and blessed him that had the promises. And, without any contradiction, the less is blessed by the better. And in the one instance, men that die receive tithes; but in the other, he receives them who has the testimony that he lives. And so to speak, even Levi, who receives tithes, paid tithes through Abraham; for he was yet in the loins of his father, when Melchisedec met him.

Alas for you, scribes and Pharisees, hypocrites! for you pay tithes of mint and dill and cummin, and have neglected the weightier matters of the law, its justice, its mercy, and its faithfulness. These you ought to have done, and those you ought not to have neglected.