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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 970 · 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. 1.4/6 − 7/12 =
  2. 2.3/11 − 2/10 =
  3. 3.2/3 + 7/8 =
  4. 4.3/6 − 2/6 =
  5. 5.2/4 − 1/3 =
  6. 6.5/8 − 2/5 =
  7. 7.2/5 − 2/11 =
  8. 8.8/11 + 1/4 =
  9. 9.10/12 − 5/8 =
  10. 10.3/11 + 1/3 =
  11. 11.2/3 − 1/6 =
  12. 12.2/11 + 4/10 =
  13. 13.4/7 + 6/9 =
  14. 14.3/10 + 1/8 =
  15. 15.3/6 − 3/7 =
  16. 16.7/8 + 2/3 =
  17. 17.7/9 + 7/9 =
  18. 18.4/11 + 8/12 =
  19. 19.5/11 − 1/8 =
  20. 20.6/8 − 2/11 =
  21. 21.1/11 + 1/3 =
  22. 22.1/2 − 1/10 =
  23. 23.2/9 + 2/8 =
  24. 24.2/8 + 2/5 =
  25. 25.1/2 + 3/7 =
  26. 26.8/11 + 5/7 =
  27. 27.3/4 + 1/2 =
  28. 28.5/6 − 2/8 =
  29. 29.3/5 − 1/3 =
  30. 30.2/7 + 1/4 =
  31. 31.5/9 − 1/10 =
  32. 32.2/3 − 3/7 =
  33. 33.2/12 + 1/6 =
  34. 34.1/2 − 1/3 =
  35. 35.7/9 + 1/5 =
  36. 36.1/4 + 1/9 =
  37. 37.1/2 − 1/7 =
  38. 38.4/7 − 4/8 =
  39. 39.2/4 − 2/5 =
  40. 40.4/7 + 1/3 =

Answer key

  1. 1/12
  2. 4/55
  3. 37/24
  4. 1/6
  5. 1/6
  6. 9/40
  7. 12/55
  8. 43/44
  9. 5/24
  10. 20/33
  11. 1/2
  12. 32/55
  13. 26/21
  14. 17/40
  15. 1/14
  16. 37/24
  17. 14/9
  18. 34/33
  19. 29/88
  20. 25/44
  21. 14/33
  22. 2/5
  23. 17/36
  24. 13/20
  25. 13/14
  26. 111/77
  27. 5/4
  28. 7/12
  29. 4/15
  30. 15/28
  31. 41/90
  32. 5/21
  33. 1/3
  34. 1/6
  35. 44/45
  36. 13/36
  37. 5/14
  38. 1/14
  39. 1/10
  40. 19/21

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