1. The returns of the votes cast in the outside territory proposed to be annexed and in the district shall be canvassed separately, and the board of directors shall cause a record of the canvass to be made and entered in its minutes.
2. If it appears from such canvass that a majority of the votes cast in the district and in the territory proposed to be annexed are in favor of the change in boundary, the board shall so find. Upon the filing of a certified copy of such findings, under seal of the district, in the office of the county recorder, the territory shall be a part of the district.