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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 733 · 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. 1.6/8 − 6/10 =
  2. 2.1/3 − 2/9 =
  3. 3.2/3 − 2/4 =
  4. 4.4/7 − 1/4 =
  5. 5.4/9 + 1/3 =
  6. 6.9/11 − 3/4 =
  7. 7.5/7 + 2/5 =
  8. 8.2/4 + 3/5 =
  9. 9.4/5 + 4/12 =
  10. 10.3/4 + 1/6 =
  11. 11.6/8 + 1/4 =
  12. 12.5/8 + 3/5 =
  13. 13.8/10 − 1/5 =
  14. 14.2/10 + 6/12 =
  15. 15.2/3 − 3/8 =
  16. 16.3/7 + 2/9 =
  17. 17.5/8 + 3/6 =
  18. 18.1/4 + 1/11 =
  19. 19.3/5 − 2/4 =
  20. 20.1/2 + 4/8 =
  21. 21.2/7 + 1/5 =
  22. 22.10/12 − 3/11 =
  23. 23.6/9 − 3/8 =
  24. 24.3/4 + 6/10 =
  25. 25.2/6 + 1/3 =
  26. 26.6/10 − 1/2 =
  27. 27.4/12 + 3/11 =
  28. 28.1/2 + 3/6 =
  29. 29.2/4 − 3/8 =
  30. 30.3/4 + 7/8 =
  31. 31.3/7 + 2/3 =
  32. 32.2/4 + 1/2 =
  33. 33.1/2 + 1/2 =
  34. 34.2/7 + 2/7 =
  35. 35.1/3 − 3/10 =
  36. 36.10/11 − 4/7 =
  37. 37.1/2 − 1/5 =
  38. 38.2/9 + 2/10 =
  39. 39.7/8 − 1/3 =
  40. 40.4/7 + 5/8 =

Answer key

  1. 3/20
  2. 1/9
  3. 1/6
  4. 9/28
  5. 7/9
  6. 3/44
  7. 39/35
  8. 11/10
  9. 17/15
  10. 11/12
  11. 1
  12. 49/40
  13. 3/5
  14. 7/10
  15. 7/24
  16. 41/63
  17. 9/8
  18. 15/44
  19. 1/10
  20. 1
  21. 17/35
  22. 37/66
  23. 7/24
  24. 27/20
  25. 2/3
  26. 1/10
  27. 20/33
  28. 1
  29. 1/8
  30. 13/8
  31. 23/21
  32. 1
  33. 1
  34. 4/7
  35. 1/30
  36. 26/77
  37. 3/10
  38. 19/45
  39. 13/24
  40. 67/56

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