Cut and Shoot:
Flip original hem up over the outside of the jean (like a cuff) and sew with a 1/2" seam allowance.
Cut and Shoot:
This is what it will look like as your doing this step on the outside.
Cut and Shoot:
This is what it will look like as your doing this step from the inside.
Cut and Shoot:
When you've completed this, give the jeans a quick press and notice the clean,small french seam just inside the jean.