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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 633 · 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. 1.4/8 − 2/5 =
  2. 2.1/10 + 4/8 =
  3. 3.9/12 + 2/4 =
  4. 4.2/11 + 9/12 =
  5. 5.8/11 + 3/9 =
  6. 6.1/4 + 2/8 =
  7. 7.3/10 − 1/4 =
  8. 8.1/11 + 1/3 =
  9. 9.2/3 − 5/8 =
  10. 10.2/10 + 3/12 =
  11. 11.4/5 − 2/3 =
  12. 12.1/7 − 1/12 =
  13. 13.9/10 + 4/10 =
  14. 14.4/5 + 1/4 =
  15. 15.1/2 − 3/10 =
  16. 16.3/6 + 9/12 =
  17. 17.1/4 − 1/6 =
  18. 18.10/11 + 3/4 =
  19. 19.2/9 + 3/6 =
  20. 20.1/5 + 1/3 =
  21. 21.2/5 + 1/2 =
  22. 22.5/11 + 5/8 =
  23. 23.1/4 + 6/8 =
  24. 24.4/8 + 4/5 =
  25. 25.4/10 − 1/3 =
  26. 26.10/12 + 3/8 =
  27. 27.2/5 + 3/12 =
  28. 28.4/5 + 2/3 =
  29. 29.2/5 + 3/8 =
  30. 30.11/12 + 1/4 =
  31. 31.2/3 + 2/12 =
  32. 32.5/12 + 3/10 =
  33. 33.4/10 − 2/6 =
  34. 34.1/2 − 1/4 =
  35. 35.2/4 + 7/10 =
  36. 36.2/8 + 9/11 =
  37. 37.1/3 + 5/9 =
  38. 38.2/3 + 2/3 =
  39. 39.3/4 + 1/8 =
  40. 40.7/11 − 1/3 =

Answer key

  1. 1/10
  2. 3/5
  3. 5/4
  4. 41/44
  5. 35/33
  6. 1/2
  7. 1/20
  8. 14/33
  9. 1/24
  10. 9/20
  11. 2/15
  12. 5/84
  13. 13/10
  14. 21/20
  15. 1/5
  16. 5/4
  17. 1/12
  18. 73/44
  19. 13/18
  20. 8/15
  21. 9/10
  22. 95/88
  23. 1
  24. 13/10
  25. 1/15
  26. 29/24
  27. 13/20
  28. 22/15
  29. 31/40
  30. 7/6
  31. 5/6
  32. 43/60
  33. 1/15
  34. 1/4
  35. 6/5
  36. 47/44
  37. 8/9
  38. 4/3
  39. 7/8
  40. 10/33

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