Ko ngā tau e whai hautanga ā-ira ana. Arā, e rua ngā wāhanga o tēnei momo tau. Ki te taha mauī o te ira te wāhanga tauoti, ki te taha matau te wāhanga hautau ā-ira.
Numbers that contain a decimal fraction. There are two parts to the number. On the left of the decimal point is the whole number component, on the right is the decimal fraction component.