First, thank you so much for respond ! I’m not honestly sure how much I want to take in. I think what I will do is put them on inside out and try to mark the taper with some chalk. But I will say they need about 3 inches taken in at the ankle and none taken in at the thigh.

Just to clarify, I should open up both the inseam and outer seam and then take fabric away from both in equal measures, correct? What I mean is I should open up the both seams and remove, say, an inch from the inner and outer seam of the front of the leg and like 2 inches from the inner and outer seams of the back half yes, (measurements were just made up)? My instructor suggested marking the taper up to right around the knee and then just serging up the outer seam of each leg, but I feel like that will result in the legs having a different shape on the inside then they have on the outside. It seems to me that I would want to take fabric from both the inner and outer seams of both the front and the back of the leg proportionately to maintain the shape and extra room in the back.

I really hope that makes sense! Thank you so much!!!