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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 157 · 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 − 3/7 =
  2. 2.3/4 − 1/2 =
  3. 3.8/9 − 2/11 =
  4. 4.4/5 − 5/8 =
  5. 5.5/6 + 4/7 =
  6. 6.9/11 + 4/6 =
  7. 7.4/6 − 7/12 =
  8. 8.1/2 + 8/10 =
  9. 9.9/10 − 1/2 =
  10. 10.1/2 − 1/3 =
  11. 11.2/3 + 7/9 =
  12. 12.1/3 − 2/9 =
  13. 13.9/12 + 1/9 =
  14. 14.1/5 + 1/2 =
  15. 15.1/3 − 1/5 =
  16. 16.4/5 + 5/8 =
  17. 17.7/8 − 1/2 =
  18. 18.2/3 − 5/10 =
  19. 19.1/7 + 6/12 =
  20. 20.3/11 + 5/7 =
  21. 21.1/2 + 3/11 =
  22. 22.2/3 − 1/3 =
  23. 23.1/3 + 3/10 =
  24. 24.5/11 − 1/4 =
  25. 25.5/6 + 2/4 =
  26. 26.6/8 − 2/5 =
  27. 27.5/12 + 3/10 =
  28. 28.1/3 − 1/7 =
  29. 29.5/11 + 2/4 =
  30. 30.1/3 + 4/7 =
  31. 31.2/6 + 1/10 =
  32. 32.3/9 + 3/4 =
  33. 33.2/3 + 6/10 =
  34. 34.4/8 + 9/11 =
  35. 35.5/6 − 1/2 =
  36. 36.1/11 + 2/4 =
  37. 37.6/11 + 3/11 =
  38. 38.1/2 + 1/2 =
  39. 39.1/7 + 1/2 =
  40. 40.2/3 − 4/7 =

Answer key

  1. 13/35
  2. 1/4
  3. 70/99
  4. 7/40
  5. 59/42
  6. 49/33
  7. 1/12
  8. 13/10
  9. 2/5
  10. 1/6
  11. 13/9
  12. 1/9
  13. 31/36
  14. 7/10
  15. 2/15
  16. 57/40
  17. 3/8
  18. 1/6
  19. 9/14
  20. 76/77
  21. 17/22
  22. 1/3
  23. 19/30
  24. 9/44
  25. 4/3
  26. 7/20
  27. 43/60
  28. 4/21
  29. 21/22
  30. 19/21
  31. 13/30
  32. 13/12
  33. 19/15
  34. 29/22
  35. 1/3
  36. 13/22
  37. 9/11
  38. 1
  39. 9/14
  40. 2/21

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