II. Add or subtract. Write your answers in lowest term. ENCIRCLE the letter of your answer.
13. 7/9 + 2/6
A. 2 1/9
B. 1 119
C. 12/18
D. 5/15

14. 15 - 2/12
A 14 5/12
B. 14 8/12
C. 14 5/6
D.14 2112​