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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 892 · 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 + 1/10 =
  2. 2.1/2 − 2/11 =
  3. 3.1/2 − 2/10 =
  4. 4.2/3 − 2/7 =
  5. 5.5/7 − 2/4 =
  6. 6.3/4 − 8/11 =
  7. 7.1/3 + 3/10 =
  8. 8.7/9 + 2/4 =
  9. 9.4/6 + 8/9 =
  10. 10.3/8 − 1/8 =
  11. 11.2/3 + 4/12 =
  12. 12.2/3 − 1/12 =
  13. 13.1/9 + 1/2 =
  14. 14.10/11 − 1/2 =
  15. 15.4/6 + 1/3 =
  16. 16.1/12 + 5/8 =
  17. 17.1/2 + 1/12 =
  18. 18.2/5 + 1/10 =
  19. 19.7/8 − 5/7 =
  20. 20.2/7 + 2/8 =
  21. 21.7/9 − 4/7 =
  22. 22.3/4 + 4/8 =
  23. 23.3/9 + 2/3 =
  24. 24.3/4 + 3/5 =
  25. 25.3/11 − 2/11 =
  26. 26.8/12 − 1/11 =
  27. 27.1/3 + 4/9 =
  28. 28.2/3 + 6/7 =
  29. 29.2/3 − 2/11 =
  30. 30.1/2 + 2/5 =
  31. 31.1/5 + 4/8 =
  32. 32.8/9 − 8/10 =
  33. 33.2/6 + 1/5 =
  34. 34.1/6 + 4/12 =
  35. 35.6/12 + 3/5 =
  36. 36.3/7 + 2/3 =
  37. 37.3/5 + 1/11 =
  38. 38.3/5 − 2/4 =
  39. 39.1/10 + 5/7 =
  40. 40.7/8 − 8/10 =

Answer key

  1. 17/20
  2. 7/22
  3. 3/10
  4. 8/21
  5. 3/14
  6. 1/44
  7. 19/30
  8. 23/18
  9. 14/9
  10. 1/4
  11. 1
  12. 7/12
  13. 11/18
  14. 9/22
  15. 1
  16. 17/24
  17. 7/12
  18. 1/2
  19. 9/56
  20. 15/28
  21. 13/63
  22. 5/4
  23. 1
  24. 27/20
  25. 1/11
  26. 19/33
  27. 7/9
  28. 32/21
  29. 16/33
  30. 9/10
  31. 7/10
  32. 4/45
  33. 8/15
  34. 1/2
  35. 11/10
  36. 23/21
  37. 38/55
  38. 1/10
  39. 57/70
  40. 3/40

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