Tennessee Code Title 48. Corporations and Associations § 48-224-103

(a) MAJORITY REQUIRED.  Except where chapters 201-248 of this title, the articles or the operating agreement requires a larger proportion, the members shall take action by the affirmative vote of the members holding a majority of the voting power present and entitled to vote on that item of business in a meeting in which a quorum is present.

(b) VOTING BY CLASS OR BY VOTING GROUP.  The articles or operating agreement may establish classes, series or voting groups and provide the voting interests and the terms and conditions of exercising such voting interests.

(c) QUORUM REQUIREMENT.  An amendment to the articles or operating agreement that adds, changes, or deletes a greater quorum or voting requirement shall meet the same quorum requirement and be adopted by the same vote and voting groups required to take action under the quorum and voting requirements then in effect or proposed to be adopted, whichever is greater.