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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 958 · 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. 1.3/4 − 3/10 =
  2. 2.1/2 + 4/8 =
  3. 3.1/3 + 3/8 =
  4. 4.9/12 + 1/4 =
  5. 5.1/7 + 1/8 =
  6. 6.1/3 − 2/11 =
  7. 7.3/12 + 1/5 =
  8. 8.2/4 − 1/11 =
  9. 9.2/7 + 1/7 =
  10. 10.9/11 + 3/7 =
  11. 11.2/5 + 7/11 =
  12. 12.7/8 + 7/12 =
  13. 13.1/6 + 5/9 =
  14. 14.6/9 + 9/11 =
  15. 15.1/2 − 2/9 =
  16. 16.1/4 − 1/9 =
  17. 17.3/7 + 2/7 =
  18. 18.7/9 + 1/2 =
  19. 19.1/2 − 2/9 =
  20. 20.1/2 + 9/10 =
  21. 21.6/8 + 2/3 =
  22. 22.1/8 + 3/4 =
  23. 23.5/12 − 4/11 =
  24. 24.7/11 + 1/4 =
  25. 25.3/4 − 1/9 =
  26. 26.2/7 + 1/4 =
  27. 27.2/11 + 1/2 =
  28. 28.2/9 + 1/4 =
  29. 29.5/8 + 2/4 =
  30. 30.1/3 − 1/11 =
  31. 31.3/4 + 1/2 =
  32. 32.3/4 + 2/10 =
  33. 33.2/8 + 1/3 =
  34. 34.4/11 + 1/6 =
  35. 35.1/7 + 2/10 =
  36. 36.3/10 + 4/10 =
  37. 37.2/7 + 3/7 =
  38. 38.3/5 − 1/7 =
  39. 39.1/2 − 4/12 =
  40. 40.5/12 − 2/8 =

Answer key

  1. 9/20
  2. 1
  3. 17/24
  4. 1
  5. 15/56
  6. 5/33
  7. 9/20
  8. 9/22
  9. 3/7
  10. 96/77
  11. 57/55
  12. 35/24
  13. 13/18
  14. 49/33
  15. 5/18
  16. 5/36
  17. 5/7
  18. 23/18
  19. 5/18
  20. 7/5
  21. 17/12
  22. 7/8
  23. 7/132
  24. 39/44
  25. 23/36
  26. 15/28
  27. 15/22
  28. 17/36
  29. 9/8
  30. 8/33
  31. 5/4
  32. 19/20
  33. 7/12
  34. 35/66
  35. 12/35
  36. 7/10
  37. 5/7
  38. 16/35
  39. 1/6
  40. 1/6

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