Fractured Fractions

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Across
  1. 2. is equal to 1/2
  2. 4. is equal to 4/30
  3. 6. 10/30 + 10/30 =
  4. 8. 10/10 - 1/10 =
  5. 9. is equal to 30/100
  6. 12. is equal to 1/2
  7. 14. 9/9 - 1/9=
  8. 16. 3/597 + 6/597 =
  9. 19. is equal to 1
  10. 20. 5/12 + 5/12 =
Down
  1. 1. is equal to 4/5
  2. 3. 1/17 + 2/17 + 9/17 - 8/17 - 1/17 =`
  3. 5. is equal to 18/80
  4. 7. 3/10 - 2/10 =
  5. 10. 5/4 - 1/4 =
  6. 11. is equal to 10/100
  7. 13. is equal to 1/2
  8. 15. + 3/12 =
  9. 17. 3/37 + 2/37 =
  10. 18. 3/8 + 2/8 =