What is the legal ruling if a husband says to his wife, 'You are divorced by half, a third, and a sixth of a divorce'?

Primary text

If the husband says, 'You are divorced by half, a third, and a sixth of a divorce' (نصف وثلث وسدس طلقة), only one divorce occurs, because these fractions constitute the parts of a single divorce pronouncement. This ruling is established because the statement refers to the division of one unit of divorce.