Answer: 12 3/8
Step-by-step explanation: first you take 11/2 and 2 1/4 and give them a common denominator (bottom number) so you take 11/2 and divide it by 2 to get 22/4, then you take 2 1/4 and make it an improper fraction, 9/4 and then you multiply, giving you 99/8, or 12 3/8
Hope this helped!