In briefQuestions in each House are decided by a majority of members present and voting; the person presiding votes only to break a tie or on a constitutional amendment.
Save as is otherwise provided in this Constitution, all questions proposed for decision in either House shall be determined by a majority of the votes of the members thereof present and voting.
Unless this Constitution provides otherwise, every question put for decision in either House is decided by a majority of the votes of the members present and voting.
The person presiding in either House shall not vote-
The person presiding in either House cannot vote:
unless on any question the votes are equally divided, in which case he shall have and exercise a casting vote; or
unless the votes on a question are equally divided, in which case the person presiding has, and must use, a casting vote (a deciding vote that breaks the tie); or
except in the case of the final vote on a Bill for an Act of Parliament under Article 54 of this Constitution in which case he shall have an original vote.
except at the final vote on a Bill for an Act of Parliament under Article 54 of this Constitution, in which case the person presiding has an original vote (an ordinary vote like any other member).