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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 457 · 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. 1.1/12 + 8/10 =
  2. 2.2/3 − 2/12 =
  3. 3.2/3 + 3/4 =
  4. 4.5/7 − 1/2 =
  5. 5.6/11 + 1/3 =
  6. 6.5/10 − 1/3 =
  7. 7.6/12 − 2/8 =
  8. 8.7/8 + 2/12 =
  9. 9.2/7 − 1/5 =
  10. 10.7/8 − 6/9 =
  11. 11.3/9 + 1/5 =
  12. 12.2/3 + 5/7 =
  13. 13.6/8 − 1/2 =
  14. 14.1/3 + 1/7 =
  15. 15.3/5 + 5/12 =
  16. 16.3/8 + 7/12 =
  17. 17.2/7 + 2/7 =
  18. 18.1/9 + 3/9 =
  19. 19.3/12 + 1/2 =
  20. 20.1/2 − 1/4 =
  21. 21.10/12 − 1/5 =
  22. 22.4/8 + 6/12 =
  23. 23.1/3 + 2/5 =
  24. 24.5/6 − 4/7 =
  25. 25.2/4 − 3/8 =
  26. 26.1/2 + 2/3 =
  27. 27.1/10 + 1/5 =
  28. 28.6/8 − 1/2 =
  29. 29.1/2 + 1/2 =
  30. 30.6/7 + 1/4 =
  31. 31.3/7 + 1/5 =
  32. 32.5/11 + 10/12 =
  33. 33.1/4 + 5/9 =
  34. 34.2/3 − 2/7 =
  35. 35.2/8 + 1/3 =
  36. 36.4/10 + 1/2 =
  37. 37.1/2 + 2/8 =
  38. 38.2/5 + 2/3 =
  39. 39.2/4 − 2/12 =
  40. 40.1/9 − 1/12 =

Answer key

  1. 53/60
  2. 1/2
  3. 17/12
  4. 3/14
  5. 29/33
  6. 1/6
  7. 1/4
  8. 25/24
  9. 3/35
  10. 5/24
  11. 8/15
  12. 29/21
  13. 1/4
  14. 10/21
  15. 61/60
  16. 23/24
  17. 4/7
  18. 4/9
  19. 3/4
  20. 1/4
  21. 19/30
  22. 1
  23. 11/15
  24. 11/42
  25. 1/8
  26. 7/6
  27. 3/10
  28. 1/4
  29. 1
  30. 31/28
  31. 22/35
  32. 85/66
  33. 29/36
  34. 8/21
  35. 7/12
  36. 9/10
  37. 3/4
  38. 16/15
  39. 1/3
  40. 1/36

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