Answer:
11 1/4
Step-by-step explanation:
13 5/6- 1 2/6= 12 1/2
12 1/2- 1 1/4= 11 1/4
11 and 1/4 year old
lucas is 13 5/6-1 1/3 which means he is 12 1/2 years old. Jane is 12 1/2-1 1/4 which means she is 11 and 1/4 years old
