Hello there the answer to 18 over 21 or 18/21 is 6/7 or 6 over 7 . if you do not believe me check on your own . if you know your multiplication you would know that 18 and 21 have 3 in common so you multiply 18 and 21 times 3 and you get 6/7 . HOPE My answer helped you out ! Peace and deuces love you all .
- Valentina Marilyn Tavares
Chat with our AI personalities