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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 839 · 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 − 1/2 =
  2. 2.3/12 + 2/5 =
  3. 3.7/10 + 2/7 =
  4. 4.1/6 + 1/12 =
  5. 5.5/8 + 3/6 =
  6. 6.4/5 − 5/11 =
  7. 7.4/8 − 1/7 =
  8. 8.2/3 − 4/7 =
  9. 9.4/5 − 5/9 =
  10. 10.5/8 + 8/10 =
  11. 11.2/3 − 1/6 =
  12. 12.4/6 − 1/7 =
  13. 13.2/3 − 1/4 =
  14. 14.2/3 + 5/12 =
  15. 15.1/2 − 1/7 =
  16. 16.5/8 + 3/5 =
  17. 17.5/6 + 3/5 =
  18. 18.3/4 + 5/11 =
  19. 19.3/11 + 3/7 =
  20. 20.9/10 − 3/10 =
  21. 21.9/12 + 1/2 =
  22. 22.11/12 − 2/8 =
  23. 23.1/4 + 7/11 =
  24. 24.4/5 + 2/4 =
  25. 25.6/10 − 1/2 =
  26. 26.2/3 + 8/11 =
  27. 27.2/10 + 2/10 =
  28. 28.1/3 + 4/7 =
  29. 29.3/4 + 2/11 =
  30. 30.1/2 + 5/7 =
  31. 31.4/5 − 1/2 =
  32. 32.1/4 + 1/12 =
  33. 33.1/4 + 2/9 =
  34. 34.1/2 + 3/6 =
  35. 35.1/2 + 1/3 =
  36. 36.3/9 + 5/6 =
  37. 37.5/7 + 1/2 =
  38. 38.5/8 + 4/9 =
  39. 39.2/11 − 1/8 =
  40. 40.3/7 − 1/11 =

Answer key

  1. 3/10
  2. 13/20
  3. 69/70
  4. 1/4
  5. 9/8
  6. 19/55
  7. 5/14
  8. 2/21
  9. 11/45
  10. 57/40
  11. 1/2
  12. 11/21
  13. 5/12
  14. 13/12
  15. 5/14
  16. 49/40
  17. 43/30
  18. 53/44
  19. 54/77
  20. 3/5
  21. 5/4
  22. 2/3
  23. 39/44
  24. 13/10
  25. 1/10
  26. 46/33
  27. 2/5
  28. 19/21
  29. 41/44
  30. 17/14
  31. 3/10
  32. 1/3
  33. 17/36
  34. 1
  35. 5/6
  36. 7/6
  37. 17/14
  38. 77/72
  39. 5/88
  40. 26/77

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