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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 939 · 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 − 2/9 =
  2. 2.8/10 − 2/5 =
  3. 3.1/4 − 1/5 =
  4. 4.7/8 + 1/2 =
  5. 5.5/6 − 1/2 =
  6. 6.2/5 + 1/10 =
  7. 7.5/6 + 1/3 =
  8. 8.2/3 + 2/8 =
  9. 9.4/9 + 3/10 =
  10. 10.9/10 + 1/4 =
  11. 11.3/8 + 3/7 =
  12. 12.3/7 + 2/6 =
  13. 13.1/8 − 1/10 =
  14. 14.9/10 + 7/8 =
  15. 15.2/3 − 3/9 =
  16. 16.2/3 + 7/8 =
  17. 17.4/5 − 4/12 =
  18. 18.1/9 + 1/3 =
  19. 19.1/2 + 8/12 =
  20. 20.5/11 + 2/7 =
  21. 21.6/9 + 3/12 =
  22. 22.2/11 + 10/12 =
  23. 23.8/11 − 1/3 =
  24. 24.2/7 + 3/4 =
  25. 25.7/10 + 5/10 =
  26. 26.5/8 − 2/6 =
  27. 27.7/8 − 8/10 =
  28. 28.2/5 − 3/8 =
  29. 29.1/5 + 1/7 =
  30. 30.1/2 + 3/11 =
  31. 31.2/3 − 1/11 =
  32. 32.1/8 + 2/10 =
  33. 33.5/7 − 4/6 =
  34. 34.3/4 − 3/10 =
  35. 35.6/11 − 3/6 =
  36. 36.4/5 − 1/2 =
  37. 37.3/12 − 2/10 =
  38. 38.4/5 + 3/6 =
  39. 39.8/12 − 1/6 =
  40. 40.3/5 + 4/8 =

Answer key

  1. 26/45
  2. 2/5
  3. 1/20
  4. 11/8
  5. 1/3
  6. 1/2
  7. 7/6
  8. 11/12
  9. 67/90
  10. 23/20
  11. 45/56
  12. 16/21
  13. 1/40
  14. 71/40
  15. 1/3
  16. 37/24
  17. 7/15
  18. 4/9
  19. 7/6
  20. 57/77
  21. 11/12
  22. 67/66
  23. 13/33
  24. 29/28
  25. 6/5
  26. 7/24
  27. 3/40
  28. 1/40
  29. 12/35
  30. 17/22
  31. 19/33
  32. 13/40
  33. 1/21
  34. 9/20
  35. 1/22
  36. 3/10
  37. 1/20
  38. 13/10
  39. 1/2
  40. 11/10

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