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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 690 · 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 − 1/3 =
  2. 2.9/12 + 1/3 =
  3. 3.5/7 − 1/5 =
  4. 4.2/5 + 2/6 =
  5. 5.6/7 + 2/12 =
  6. 6.1/8 + 5/6 =
  7. 7.2/5 − 3/8 =
  8. 8.1/2 − 1/3 =
  9. 9.4/5 + 5/7 =
  10. 10.10/12 − 6/9 =
  11. 11.5/8 − 1/7 =
  12. 12.3/6 − 2/7 =
  13. 13.1/4 + 5/9 =
  14. 14.1/7 + 1/3 =
  15. 15.11/12 − 9/10 =
  16. 16.3/4 + 1/10 =
  17. 17.1/2 − 1/7 =
  18. 18.2/4 + 1/2 =
  19. 19.4/5 + 5/7 =
  20. 20.1/4 + 7/11 =
  21. 21.4/5 − 1/2 =
  22. 22.1/2 − 2/8 =
  23. 23.1/5 + 1/3 =
  24. 24.8/12 + 6/12 =
  25. 25.5/7 + 1/4 =
  26. 26.2/5 − 1/9 =
  27. 27.6/8 + 2/9 =
  28. 28.5/7 − 1/10 =
  29. 29.1/4 + 2/11 =
  30. 30.6/9 + 6/7 =
  31. 31.6/7 + 3/6 =
  32. 32.6/9 + 1/9 =
  33. 33.10/11 − 5/12 =
  34. 34.2/3 − 1/2 =
  35. 35.9/10 − 1/3 =
  36. 36.6/12 + 2/12 =
  37. 37.2/5 + 7/10 =
  38. 38.4/10 + 8/9 =
  39. 39.4/6 + 3/9 =
  40. 40.1/2 − 1/6 =

Answer key

  1. 1/6
  2. 13/12
  3. 18/35
  4. 11/15
  5. 43/42
  6. 23/24
  7. 1/40
  8. 1/6
  9. 53/35
  10. 1/6
  11. 27/56
  12. 3/14
  13. 29/36
  14. 10/21
  15. 1/60
  16. 17/20
  17. 5/14
  18. 1
  19. 53/35
  20. 39/44
  21. 3/10
  22. 1/4
  23. 8/15
  24. 7/6
  25. 27/28
  26. 13/45
  27. 35/36
  28. 43/70
  29. 19/44
  30. 32/21
  31. 19/14
  32. 7/9
  33. 65/132
  34. 1/6
  35. 17/30
  36. 2/3
  37. 11/10
  38. 58/45
  39. 1
  40. 1/3

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