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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 28 · 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 + 5/8 =
  2. 2.6/7 − 2/3 =
  3. 3.3/4 − 1/2 =
  4. 4.4/5 − 1/4 =
  5. 5.1/2 − 1/11 =
  6. 6.1/2 − 1/4 =
  7. 7.5/6 − 1/10 =
  8. 8.7/9 + 1/10 =
  9. 9.6/9 + 11/12 =
  10. 10.2/9 + 7/10 =
  11. 11.1/3 + 1/4 =
  12. 12.1/3 − 3/12 =
  13. 13.6/7 − 4/7 =
  14. 14.1/7 + 4/6 =
  15. 15.7/9 + 2/5 =
  16. 16.1/4 + 1/11 =
  17. 17.7/8 + 4/12 =
  18. 18.3/4 + 2/4 =
  19. 19.6/8 + 9/12 =
  20. 20.9/11 − 1/3 =
  21. 21.9/10 − 2/5 =
  22. 22.6/9 − 1/5 =
  23. 23.1/3 + 3/5 =
  24. 24.4/12 − 1/8 =
  25. 25.1/11 + 3/6 =
  26. 26.2/7 − 1/5 =
  27. 27.1/3 + 5/9 =
  28. 28.2/4 + 7/8 =
  29. 29.2/3 + 1/4 =
  30. 30.5/12 + 7/9 =
  31. 31.4/6 + 1/5 =
  32. 32.2/3 − 1/3 =
  33. 33.2/3 + 1/2 =
  34. 34.5/10 + 1/2 =
  35. 35.3/8 + 5/6 =
  36. 36.5/8 + 4/6 =
  37. 37.3/8 + 5/6 =
  38. 38.10/12 − 2/4 =
  39. 39.4/10 + 5/6 =
  40. 40.4/5 + 1/3 =

Answer key

  1. 9/8
  2. 4/21
  3. 1/4
  4. 11/20
  5. 9/22
  6. 1/4
  7. 11/15
  8. 79/90
  9. 19/12
  10. 83/90
  11. 7/12
  12. 1/12
  13. 2/7
  14. 17/21
  15. 53/45
  16. 15/44
  17. 29/24
  18. 5/4
  19. 3/2
  20. 16/33
  21. 1/2
  22. 7/15
  23. 14/15
  24. 5/24
  25. 13/22
  26. 3/35
  27. 8/9
  28. 11/8
  29. 11/12
  30. 43/36
  31. 13/15
  32. 1/3
  33. 7/6
  34. 1
  35. 29/24
  36. 31/24
  37. 29/24
  38. 1/3
  39. 37/30
  40. 17/15

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