Review Directions: Follow the instructions in each problem set. Find the sum or difference. Reduce your answer to the simplest form. 1) 1/3 + 1/9 2) 1/4 + 7/8 3) 5/8 – 1/2 4) 2/3 – 1/6 5) 1/3 + 7/12 6) 1/2 + 4/5 7) 5/6 – 3/4 8) 3/4 + 5/6