Unless otherwise provided by the articles of incorporation or the bylaws, members holding one-tenth of the votes entitled to be cast on a matter, represented in person or by proxy, shall constitute a quorum for consideration of such matter at a meeting of members. If a quorum is present, the affirmative vote of a majority of the votes present and voted, either in person or by proxy, shall be the act of the members, unless the vote of a greater number or voting by classes is required by this Act, the articles of incorporation or the bylaws. The articles of incorporation or bylaws may require any number or percent greater or smaller than one-tenth up to and including a requirement of unanimity to constitute a quorum.