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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 233 · 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. 1.1/2 + 5/11 =
  2. 2.1/3 + 4/8 =
  3. 3.8/10 − 6/12 =
  4. 4.5/7 − 1/10 =
  5. 5.11/12 − 7/12 =
  6. 6.2/7 + 2/3 =
  7. 7.8/11 − 4/11 =
  8. 8.1/5 + 1/2 =
  9. 9.5/6 − 4/5 =
  10. 10.4/7 + 3/4 =
  11. 11.1/11 + 5/10 =
  12. 12.2/3 − 3/11 =
  13. 13.2/8 + 2/7 =
  14. 14.1/2 + 4/8 =
  15. 15.2/5 + 1/2 =
  16. 16.3/9 + 2/5 =
  17. 17.2/3 − 3/6 =
  18. 18.3/4 − 1/10 =
  19. 19.3/11 + 8/12 =
  20. 20.7/12 − 2/7 =
  21. 21.7/9 − 7/11 =
  22. 22.5/9 − 2/12 =
  23. 23.2/3 − 1/3 =
  24. 24.7/8 − 1/6 =
  25. 25.1/2 − 2/9 =
  26. 26.10/12 + 1/2 =
  27. 27.2/3 + 5/8 =
  28. 28.1/11 + 2/12 =
  29. 29.9/11 + 7/8 =
  30. 30.9/11 + 5/7 =
  31. 31.8/11 + 8/9 =
  32. 32.8/9 − 7/8 =
  33. 33.2/6 + 2/3 =
  34. 34.1/3 + 3/8 =
  35. 35.4/7 − 1/3 =
  36. 36.3/9 + 3/7 =
  37. 37.6/9 + 2/3 =
  38. 38.5/9 + 7/11 =
  39. 39.5/11 + 6/9 =
  40. 40.1/2 − 3/11 =

Answer key

  1. 21/22
  2. 5/6
  3. 3/10
  4. 43/70
  5. 1/3
  6. 20/21
  7. 4/11
  8. 7/10
  9. 1/30
  10. 37/28
  11. 13/22
  12. 13/33
  13. 15/28
  14. 1
  15. 9/10
  16. 11/15
  17. 1/6
  18. 13/20
  19. 31/33
  20. 25/84
  21. 14/99
  22. 7/18
  23. 1/3
  24. 17/24
  25. 5/18
  26. 4/3
  27. 31/24
  28. 17/66
  29. 149/88
  30. 118/77
  31. 160/99
  32. 1/72
  33. 1
  34. 17/24
  35. 5/21
  36. 16/21
  37. 4/3
  38. 118/99
  39. 37/33
  40. 5/22

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