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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 50 · 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 − 1/7 =
  2. 2.2/3 − 1/9 =
  3. 3.5/6 + 4/6 =
  4. 4.4/7 + 2/6 =
  5. 5.1/5 + 7/10 =
  6. 6.3/7 + 8/12 =
  7. 7.2/4 + 1/3 =
  8. 8.2/6 − 1/4 =
  9. 9.2/5 − 1/8 =
  10. 10.5/10 − 2/6 =
  11. 11.1/2 − 3/9 =
  12. 12.3/6 + 2/6 =
  13. 13.3/10 − 1/4 =
  14. 14.10/11 − 1/6 =
  15. 15.9/11 − 4/7 =
  16. 16.4/12 + 4/6 =
  17. 17.1/2 + 6/12 =
  18. 18.1/4 + 3/4 =
  19. 19.4/7 − 2/12 =
  20. 20.1/2 + 2/5 =
  21. 21.2/4 + 1/2 =
  22. 22.1/2 − 1/8 =
  23. 23.2/3 − 2/5 =
  24. 24.4/10 + 6/10 =
  25. 25.1/9 + 1/4 =
  26. 26.1/5 + 7/12 =
  27. 27.1/3 + 6/10 =
  28. 28.3/6 + 6/8 =
  29. 29.2/3 − 1/3 =
  30. 30.7/8 + 2/3 =
  31. 31.2/3 − 1/4 =
  32. 32.5/6 + 1/8 =
  33. 33.2/5 + 1/3 =
  34. 34.1/2 − 2/11 =
  35. 35.1/3 + 1/2 =
  36. 36.1/9 + 1/3 =
  37. 37.3/10 + 3/4 =
  38. 38.2/11 + 1/10 =
  39. 39.1/2 − 2/10 =
  40. 40.3/4 − 2/5 =

Answer key

  1. 23/35
  2. 5/9
  3. 3/2
  4. 19/21
  5. 9/10
  6. 23/21
  7. 5/6
  8. 1/12
  9. 11/40
  10. 1/6
  11. 1/6
  12. 5/6
  13. 1/20
  14. 49/66
  15. 19/77
  16. 1
  17. 1
  18. 1
  19. 17/42
  20. 9/10
  21. 1
  22. 3/8
  23. 4/15
  24. 1
  25. 13/36
  26. 47/60
  27. 14/15
  28. 5/4
  29. 1/3
  30. 37/24
  31. 5/12
  32. 23/24
  33. 11/15
  34. 7/22
  35. 5/6
  36. 4/9
  37. 21/20
  38. 31/110
  39. 3/10
  40. 7/20

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