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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 371 · 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. 1.3/11 + 1/2 =
  2. 2.2/6 + 5/7 =
  3. 3.11/12 − 4/5 =
  4. 4.4/7 + 4/9 =
  5. 5.6/12 + 8/10 =
  6. 6.4/7 − 2/11 =
  7. 7.1/5 + 4/7 =
  8. 8.1/6 + 5/12 =
  9. 9.6/9 + 8/12 =
  10. 10.5/7 + 1/5 =
  11. 11.2/4 + 9/10 =
  12. 12.3/12 − 2/12 =
  13. 13.2/4 + 2/3 =
  14. 14.10/12 + 1/7 =
  15. 15.5/7 − 1/2 =
  16. 16.4/8 + 1/4 =
  17. 17.10/12 − 3/5 =
  18. 18.1/2 + 1/9 =
  19. 19.9/12 + 2/3 =
  20. 20.5/6 + 1/5 =
  21. 21.1/4 + 1/2 =
  22. 22.1/2 + 4/5 =
  23. 23.5/7 − 1/3 =
  24. 24.6/7 + 2/12 =
  25. 25.1/4 + 3/4 =
  26. 26.3/10 + 4/9 =
  27. 27.1/9 + 1/2 =
  28. 28.2/5 + 3/9 =
  29. 29.1/2 − 1/8 =
  30. 30.5/8 − 1/4 =
  31. 31.1/2 + 7/11 =
  32. 32.11/12 − 2/5 =
  33. 33.5/11 − 1/4 =
  34. 34.7/8 + 2/5 =
  35. 35.3/6 − 2/12 =
  36. 36.2/4 − 1/3 =
  37. 37.8/10 − 1/4 =
  38. 38.3/12 + 2/7 =
  39. 39.11/12 + 3/5 =
  40. 40.5/7 − 5/11 =

Answer key

  1. 17/22
  2. 22/21
  3. 7/60
  4. 64/63
  5. 13/10
  6. 30/77
  7. 27/35
  8. 7/12
  9. 4/3
  10. 32/35
  11. 7/5
  12. 1/12
  13. 7/6
  14. 41/42
  15. 3/14
  16. 3/4
  17. 7/30
  18. 11/18
  19. 17/12
  20. 31/30
  21. 3/4
  22. 13/10
  23. 8/21
  24. 43/42
  25. 1
  26. 67/90
  27. 11/18
  28. 11/15
  29. 3/8
  30. 3/8
  31. 25/22
  32. 31/60
  33. 9/44
  34. 51/40
  35. 1/3
  36. 1/6
  37. 11/20
  38. 15/28
  39. 91/60
  40. 20/77

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