This is my first refashion project. My summer blue jeans got torn and I decided to try and cut them to shorts. You need basic sewing skills and a sewing machine.
First, I cut the pants to the length I wanted.
Then I sewed a piece of fabric, cut on the bias, right side to pants' wrong side along the cutting line.
Then I turned the piece of fabric right side up and attached to the pants' leg (right side) with pins and hand sewed a basting stitch.
Then I sewed two lines with two different types of stitches but this is optional.
I did this for both legs.
Then I sewed some sturdier patches for the inner side of the thighs...
... and sewed them on. And then I sewed more patches to the spots where the fabric was thinner. I used an old shirt for the patches and hems.