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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 450 · 40 sums
TalentJR

The trick (Urdhva Tiryagbhyam): Top: multiply crosswise — first top × second bottom, then first bottom × second top — and add (or subtract). Bottom: multiply the two bottoms. Simplify by dividing top and bottom by their HCF. Give the answer as a fraction like 17/12.

NameDateTime takenScore ___ / 40
  1. 1.2/11 − 1/10 =
  2. 2.3/8 + 2/3 =
  3. 3.5/7 + 7/10 =
  4. 4.2/5 + 2/4 =
  5. 5.7/12 − 1/2 =
  6. 6.3/4 − 5/8 =
  7. 7.4/5 + 4/11 =
  8. 8.7/8 − 2/5 =
  9. 9.1/3 + 2/8 =
  10. 10.1/3 − 3/10 =
  11. 11.2/8 + 6/9 =
  12. 12.1/5 + 2/4 =
  13. 13.3/10 + 1/3 =
  14. 14.1/3 + 1/3 =
  15. 15.1/4 − 2/9 =
  16. 16.1/2 + 6/9 =
  17. 17.8/9 − 1/3 =
  18. 18.1/3 + 5/7 =
  19. 19.1/3 + 2/3 =
  20. 20.1/2 + 3/7 =
  21. 21.9/11 − 1/5 =
  22. 22.1/11 + 9/10 =
  23. 23.5/6 − 3/4 =
  24. 24.5/6 + 3/4 =
  25. 25.2/4 + 1/2 =
  26. 26.7/12 + 1/5 =
  27. 27.3/6 + 1/8 =
  28. 28.1/3 + 1/11 =
  29. 29.11/12 + 9/11 =
  30. 30.1/11 + 1/3 =
  31. 31.2/5 + 3/9 =
  32. 32.2/4 − 1/3 =
  33. 33.5/11 + 5/12 =
  34. 34.4/5 + 4/6 =
  35. 35.2/3 + 2/3 =
  36. 36.3/7 + 7/10 =
  37. 37.6/11 + 1/2 =
  38. 38.2/9 + 4/5 =
  39. 39.6/10 − 1/6 =
  40. 40.3/4 − 3/7 =

Answer key

  1. 9/110
  2. 25/24
  3. 99/70
  4. 9/10
  5. 1/12
  6. 1/8
  7. 64/55
  8. 19/40
  9. 7/12
  10. 1/30
  11. 11/12
  12. 7/10
  13. 19/30
  14. 2/3
  15. 1/36
  16. 7/6
  17. 5/9
  18. 22/21
  19. 1
  20. 13/14
  21. 34/55
  22. 109/110
  23. 1/12
  24. 19/12
  25. 1
  26. 47/60
  27. 5/8
  28. 14/33
  29. 229/132
  30. 14/33
  31. 11/15
  32. 1/6
  33. 115/132
  34. 22/15
  35. 4/3
  36. 79/70
  37. 23/22
  38. 46/45
  39. 13/30
  40. 9/28

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