Fcherry889go Fcherry889go Math Answered ||. Add or subtract the following fractions. Reduce your answer to lowest terms if possible. 1. 3 1/4 + 3 5/8 = 2. 9 9/10 + 2 2/5 = 3.5 2/8 + 2 4/10 = 4. 8 2/4 + 7 2/3 = 5. 5 5/6 - 3 1/4 = 6. 9 3/4 - 7 3/6 7. 8 9/10 - 7 2/5 = 8. 12 5/6 - 10 4/9 9. 11 5/7 - 8 3/5