(add. write your answer as a fraction, as a whole or as a mixed number)
PLEASE HELP . WILL GIVE BRAINLIEST !

Answer:
20 7/12
Step-by-step explanation:
10 2/3= 10 8/12
10 8/12+ 9 11/12= 19 19/12
(19/12=1 7/12)
19+1 7/12= 20 7/12