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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 687 · 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. 1.5/9 − 3/9 =
  2. 2.4/6 − 2/4 =
  3. 3.7/11 + 5/7 =
  4. 4.3/8 + 6/7 =
  5. 5.7/9 − 3/4 =
  6. 6.8/10 + 1/2 =
  7. 7.5/8 + 5/9 =
  8. 8.2/7 + 1/4 =
  9. 9.11/12 − 6/11 =
  10. 10.2/6 + 2/4 =
  11. 11.5/8 + 3/4 =
  12. 12.3/5 + 2/4 =
  13. 13.5/6 − 4/5 =
  14. 14.4/11 + 4/5 =
  15. 15.6/10 + 3/9 =
  16. 16.2/9 − 1/7 =
  17. 17.2/3 + 1/8 =
  18. 18.1/8 + 6/9 =
  19. 19.9/10 − 3/7 =
  20. 20.2/3 − 1/3 =
  21. 21.5/8 + 1/2 =
  22. 22.5/9 − 1/2 =
  23. 23.2/3 − 1/9 =
  24. 24.1/2 + 10/12 =
  25. 25.9/11 − 1/3 =
  26. 26.9/12 + 2/9 =
  27. 27.6/7 − 1/4 =
  28. 28.4/8 + 4/11 =
  29. 29.4/12 + 2/4 =
  30. 30.1/2 + 10/12 =
  31. 31.1/5 + 8/11 =
  32. 32.1/5 + 1/7 =
  33. 33.4/7 + 1/3 =
  34. 34.3/6 + 1/12 =
  35. 35.3/4 − 2/5 =
  36. 36.1/12 + 1/12 =
  37. 37.1/2 − 1/6 =
  38. 38.8/11 + 8/12 =
  39. 39.4/8 + 10/11 =
  40. 40.6/9 − 3/5 =

Answer key

  1. 2/9
  2. 1/6
  3. 104/77
  4. 69/56
  5. 1/36
  6. 13/10
  7. 85/72
  8. 15/28
  9. 49/132
  10. 5/6
  11. 11/8
  12. 11/10
  13. 1/30
  14. 64/55
  15. 14/15
  16. 5/63
  17. 19/24
  18. 19/24
  19. 33/70
  20. 1/3
  21. 9/8
  22. 1/18
  23. 5/9
  24. 4/3
  25. 16/33
  26. 35/36
  27. 17/28
  28. 19/22
  29. 5/6
  30. 4/3
  31. 51/55
  32. 12/35
  33. 19/21
  34. 7/12
  35. 7/20
  36. 1/6
  37. 1/3
  38. 46/33
  39. 31/22
  40. 1/15

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