tuff math asignment

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Across
  1. 1. 7/8 - 1/2
  2. 2. 1/2 + 3/8
  3. 3. 1/2 - 1/4
  4. 4. 4/5 - 1/2
  5. 6. 3/4 - 1/2
  6. 7. 1/4 + 1/2
  7. 9. 1/3 + 1/12
  8. 11. 5/9 - 3/9
  9. 12. 1/2 - 1/3
  10. 13. 1/5 + 2/5
Down
  1. 1. 5/8 - 1/4
  2. 2. 1/5 + 1/2
  3. 4. 1/2 + 1/4
  4. 5. 2/3 - 1/3
  5. 6. 5/6 - 1/3
  6. 8. 1/9 + 3/9
  7. 9. 1/2 + 1/3
  8. 10. 3/5 - 2/5
  9. 11. 1/3 + 1/3
  10. 14. 1/4 + 3/8