Mich. Comp. Laws § 331.1210: Board of trustees and subsidiary board; quorum; action by vote of majority.

Sec. 210.

A majority of the trustees serving on a board or subsidiary board shall constitute a quorum for the transaction of business of the corporation or subsidiary corporation, respectively. Except as otherwise specifically provided in this act, actions taken by a board of trustees or subsidiary board shall be by a vote of a majority of the members serving on the board or subsidiary board.