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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 355 · 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. 1.5/11 + 6/11 =
  2. 2.5/8 + 1/10 =
  3. 3.1/2 − 1/3 =
  4. 4.2/6 − 2/12 =
  5. 5.5/9 − 3/6 =
  6. 6.3/6 + 2/8 =
  7. 7.7/10 − 1/3 =
  8. 8.2/10 + 6/9 =
  9. 9.6/10 + 2/10 =
  10. 10.6/10 + 1/2 =
  11. 11.1/10 + 5/9 =
  12. 12.10/11 − 1/5 =
  13. 13.4/10 − 2/9 =
  14. 14.3/12 + 8/10 =
  15. 15.6/8 + 1/7 =
  16. 16.4/5 − 1/9 =
  17. 17.3/4 − 5/11 =
  18. 18.1/4 + 1/4 =
  19. 19.2/4 − 2/9 =
  20. 20.11/12 + 2/3 =
  21. 21.4/11 + 2/11 =
  22. 22.5/11 − 1/7 =
  23. 23.9/10 + 3/5 =
  24. 24.4/11 + 2/7 =
  25. 25.2/3 − 1/9 =
  26. 26.2/6 − 1/6 =
  27. 27.4/9 + 2/5 =
  28. 28.2/4 + 2/8 =
  29. 29.5/9 − 2/12 =
  30. 30.2/3 + 3/10 =
  31. 31.8/11 − 3/12 =
  32. 32.2/4 − 2/5 =
  33. 33.6/9 + 1/8 =
  34. 34.2/5 − 1/6 =
  35. 35.1/12 + 11/12 =
  36. 36.8/10 − 2/4 =
  37. 37.1/8 + 2/8 =
  38. 38.1/7 + 2/7 =
  39. 39.1/2 − 1/5 =
  40. 40.1/2 − 1/4 =

Answer key

  1. 1
  2. 29/40
  3. 1/6
  4. 1/6
  5. 1/18
  6. 3/4
  7. 11/30
  8. 13/15
  9. 4/5
  10. 11/10
  11. 59/90
  12. 39/55
  13. 8/45
  14. 21/20
  15. 25/28
  16. 31/45
  17. 13/44
  18. 1/2
  19. 5/18
  20. 19/12
  21. 6/11
  22. 24/77
  23. 3/2
  24. 50/77
  25. 5/9
  26. 1/6
  27. 38/45
  28. 3/4
  29. 7/18
  30. 29/30
  31. 21/44
  32. 1/10
  33. 19/24
  34. 7/30
  35. 1
  36. 3/10
  37. 3/8
  38. 3/7
  39. 3/10
  40. 1/4

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