랑 똑같아

exactly the same as

→ 랑
phrase Common #5,985
exactly the same as 랑 attaches to a noun and means “with” in this comparison. 똑같아 is the informal casual form; the phrase can also appear with polite endings such as 똑같아요.
KO: 이거 네 가방이랑 똑같아.
EN: This is exactly the same as your bag.

너 어렸을 때 랑 똑같아

You're exactly the same as you were when you were little.

— 대부 (1972)

지난주 랑 똑같아.

It's the same as last week.

그때 랑 똑같아

It’s exactly the same as it was then.

— 폭풍의 시간 (2018)

엄마 어릴 때 랑 똑같아

You look exactly like Mom did when she was young.

— 이웃집 토토로 (1988)