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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 11 · 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. 1.4/5 + 9/12 =
  2. 2.2/6 − 1/10 =
  3. 3.1/2 − 1/3 =
  4. 4.2/4 + 1/2 =
  5. 5.5/6 − 3/5 =
  6. 6.1/2 + 1/2 =
  7. 7.2/3 + 1/3 =
  8. 8.1/5 + 1/9 =
  9. 9.9/11 − 2/12 =
  10. 10.2/3 + 2/11 =
  11. 11.2/6 + 1/2 =
  12. 12.11/12 + 7/12 =
  13. 13.10/12 + 5/7 =
  14. 14.7/12 − 4/7 =
  15. 15.1/5 + 3/11 =
  16. 16.2/7 − 1/6 =
  17. 17.2/12 + 1/3 =
  18. 18.4/8 − 1/5 =
  19. 19.1/2 + 1/6 =
  20. 20.9/12 + 5/6 =
  21. 21.3/12 + 3/11 =
  22. 22.9/12 + 3/4 =
  23. 23.3/6 + 2/11 =
  24. 24.4/11 + 4/5 =
  25. 25.3/4 − 1/6 =
  26. 26.3/5 − 2/4 =
  27. 27.1/3 + 1/2 =
  28. 28.5/11 + 4/9 =
  29. 29.5/12 + 1/2 =
  30. 30.5/10 + 4/10 =
  31. 31.5/10 + 7/8 =
  32. 32.1/3 + 1/2 =
  33. 33.2/4 + 9/10 =
  34. 34.1/10 + 2/5 =
  35. 35.2/3 + 2/6 =
  36. 36.8/12 + 4/11 =
  37. 37.1/11 + 1/2 =
  38. 38.2/4 + 1/3 =
  39. 39.1/10 + 2/6 =
  40. 40.1/2 − 1/4 =

Answer key

  1. 31/20
  2. 7/30
  3. 1/6
  4. 1
  5. 7/30
  6. 1
  7. 1
  8. 14/45
  9. 43/66
  10. 28/33
  11. 5/6
  12. 3/2
  13. 65/42
  14. 1/84
  15. 26/55
  16. 5/42
  17. 1/2
  18. 3/10
  19. 2/3
  20. 19/12
  21. 23/44
  22. 3/2
  23. 15/22
  24. 64/55
  25. 7/12
  26. 1/10
  27. 5/6
  28. 89/99
  29. 11/12
  30. 9/10
  31. 11/8
  32. 5/6
  33. 7/5
  34. 1/2
  35. 1
  36. 34/33
  37. 13/22
  38. 5/6
  39. 13/30
  40. 1/4

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