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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 110 · 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. 1.5/7 − 2/4 =
  2. 2.1/3 + 1/6 =
  3. 3.1/2 + 3/5 =
  4. 4.1/2 − 2/5 =
  5. 5.9/12 − 1/2 =
  6. 6.2/5 + 8/11 =
  7. 7.4/8 − 1/11 =
  8. 8.6/7 + 5/6 =
  9. 9.1/9 + 1/2 =
  10. 10.6/12 − 1/4 =
  11. 11.2/4 + 1/2 =
  12. 12.6/10 + 1/2 =
  13. 13.1/2 − 2/7 =
  14. 14.3/7 − 2/6 =
  15. 15.2/11 + 4/6 =
  16. 16.2/3 − 1/8 =
  17. 17.6/7 − 7/11 =
  18. 18.3/4 − 5/8 =
  19. 19.1/2 − 2/5 =
  20. 20.2/4 + 7/10 =
  21. 21.5/9 − 1/2 =
  22. 22.9/11 − 3/4 =
  23. 23.3/9 + 3/4 =
  24. 24.3/6 − 3/10 =
  25. 25.1/3 + 3/9 =
  26. 26.7/12 + 2/5 =
  27. 27.2/3 + 3/7 =
  28. 28.1/9 + 10/12 =
  29. 29.2/10 − 1/6 =
  30. 30.3/6 + 2/3 =
  31. 31.9/10 − 6/8 =
  32. 32.3/5 − 1/3 =
  33. 33.2/3 + 6/8 =
  34. 34.6/11 − 1/3 =
  35. 35.2/12 + 4/8 =
  36. 36.4/6 + 5/9 =
  37. 37.2/10 + 2/4 =
  38. 38.1/2 + 5/6 =
  39. 39.8/12 + 3/12 =
  40. 40.9/10 − 5/8 =

Answer key

  1. 3/14
  2. 1/2
  3. 11/10
  4. 1/10
  5. 1/4
  6. 62/55
  7. 9/22
  8. 71/42
  9. 11/18
  10. 1/4
  11. 1
  12. 11/10
  13. 3/14
  14. 2/21
  15. 28/33
  16. 13/24
  17. 17/77
  18. 1/8
  19. 1/10
  20. 6/5
  21. 1/18
  22. 3/44
  23. 13/12
  24. 1/5
  25. 2/3
  26. 59/60
  27. 23/21
  28. 17/18
  29. 1/30
  30. 7/6
  31. 3/20
  32. 4/15
  33. 17/12
  34. 7/33
  35. 2/3
  36. 11/9
  37. 7/10
  38. 4/3
  39. 11/12
  40. 11/40

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