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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 387 · 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. 1.11/12 + 1/11 =
  2. 2.1/7 + 2/6 =
  3. 3.2/4 − 2/7 =
  4. 4.2/3 − 4/10 =
  5. 5.3/4 − 3/12 =
  6. 6.11/12 − 2/3 =
  7. 7.1/4 + 3/9 =
  8. 8.9/10 + 7/12 =
  9. 9.3/6 + 1/2 =
  10. 10.1/3 + 4/9 =
  11. 11.2/6 − 2/8 =
  12. 12.1/2 + 1/2 =
  13. 13.4/5 + 2/3 =
  14. 14.1/3 − 1/4 =
  15. 15.2/5 − 1/10 =
  16. 16.1/2 − 2/7 =
  17. 17.3/4 − 2/3 =
  18. 18.2/11 + 3/7 =
  19. 19.6/8 − 1/2 =
  20. 20.4/6 − 4/7 =
  21. 21.6/7 + 5/8 =
  22. 22.2/3 + 1/5 =
  23. 23.3/4 + 5/9 =
  24. 24.9/10 − 1/6 =
  25. 25.4/6 − 1/9 =
  26. 26.1/3 + 2/3 =
  27. 27.2/12 + 3/6 =
  28. 28.5/9 + 1/10 =
  29. 29.2/9 + 1/3 =
  30. 30.7/8 − 4/10 =
  31. 31.4/9 + 2/5 =
  32. 32.2/7 + 5/8 =
  33. 33.1/2 + 6/8 =
  34. 34.4/5 + 1/12 =
  35. 35.2/3 + 1/4 =
  36. 36.5/12 + 7/8 =
  37. 37.1/11 + 4/5 =
  38. 38.3/4 − 2/3 =
  39. 39.2/9 − 1/5 =
  40. 40.4/5 − 1/2 =

Answer key

  1. 133/132
  2. 10/21
  3. 3/14
  4. 4/15
  5. 1/2
  6. 1/4
  7. 7/12
  8. 89/60
  9. 1
  10. 7/9
  11. 1/12
  12. 1
  13. 22/15
  14. 1/12
  15. 3/10
  16. 3/14
  17. 1/12
  18. 47/77
  19. 1/4
  20. 2/21
  21. 83/56
  22. 13/15
  23. 47/36
  24. 11/15
  25. 5/9
  26. 1
  27. 2/3
  28. 59/90
  29. 5/9
  30. 19/40
  31. 38/45
  32. 51/56
  33. 5/4
  34. 53/60
  35. 11/12
  36. 31/24
  37. 49/55
  38. 1/12
  39. 1/45
  40. 3/10

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