Question

Joey practices the guitar every 11th day and the trombone every 3rd day. Joey practiced both the guitar and the trombone today. How many days did Joey practices the guitar and the trombone again in the same day?

Answer 1

11 = 11*1

3=3*1

least common multiple = 3*11*1 = 33

33 days from today he will practice the guitar and the trombone