How to Say "I bought the same bag as my younger sibling last week." in Korean?

"I bought the same bag as my younger sibling last week." in Korean is 지난주에 동생하고 같은 가방 샀어요. (jinanjue dongsaenghago gateun gabang sasseoyo)

같아요. (gatayo) - It's the same.
똑같아요! (ttokkkatayo) - They're exactly the same!
같은 옷 (gateun ot) - same clothes
같은 옷 입어요. (gateun ot ibeoyo) - I wear the same clothes.
친구하고 같은 옷 입어요. (chinguhago gateun ot ibeoyo) - I wear the same clothes as my friend.
우리 같은 옷 입어요. 그래서 같이 사진 찍어요. (uri gateun ot ibeoyo geuraeseo gachi sajin jjigeoyo) - We wear the same clothes. So we take pictures together.
커플티 (keopeulti) - matching couple T-shirts
남자친구하고 커플티 입어요. (namjachinguhago keopeulti ibeoyo) - I wear matching couple T-shirts with my boyfriend.