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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 59 · 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. 1.8/9 − 3/6 =
  2. 2.4/12 + 6/9 =
  3. 3.5/8 − 4/8 =
  4. 4.5/6 − 1/4 =
  5. 5.3/4 − 8/12 =
  6. 6.5/12 + 1/8 =
  7. 7.3/8 − 1/5 =
  8. 8.11/12 + 2/4 =
  9. 9.6/12 − 4/9 =
  10. 10.3/8 − 1/4 =
  11. 11.2/4 + 9/10 =
  12. 12.3/8 + 3/7 =
  13. 13.1/5 + 8/12 =
  14. 14.1/3 + 2/7 =
  15. 15.1/2 + 4/6 =
  16. 16.1/2 − 1/7 =
  17. 17.2/10 + 2/4 =
  18. 18.1/3 + 3/4 =
  19. 19.4/7 + 5/11 =
  20. 20.3/4 + 1/2 =
  21. 21.8/9 + 2/8 =
  22. 22.2/8 + 3/10 =
  23. 23.2/3 + 2/5 =
  24. 24.2/3 + 7/10 =
  25. 25.1/3 + 6/8 =
  26. 26.7/11 + 7/12 =
  27. 27.2/3 − 1/2 =
  28. 28.1/2 + 4/8 =
  29. 29.9/12 − 2/4 =
  30. 30.9/12 + 1/12 =
  31. 31.1/3 + 9/12 =
  32. 32.6/12 + 1/2 =
  33. 33.3/4 + 1/8 =
  34. 34.6/7 − 4/5 =
  35. 35.1/2 + 8/12 =
  36. 36.2/5 − 1/4 =
  37. 37.1/2 − 1/11 =
  38. 38.5/9 − 4/9 =
  39. 39.2/3 + 2/10 =
  40. 40.4/5 + 3/6 =

Answer key

  1. 7/18
  2. 1
  3. 1/8
  4. 7/12
  5. 1/12
  6. 13/24
  7. 7/40
  8. 17/12
  9. 1/18
  10. 1/8
  11. 7/5
  12. 45/56
  13. 13/15
  14. 13/21
  15. 7/6
  16. 5/14
  17. 7/10
  18. 13/12
  19. 79/77
  20. 5/4
  21. 41/36
  22. 11/20
  23. 16/15
  24. 41/30
  25. 13/12
  26. 161/132
  27. 1/6
  28. 1
  29. 1/4
  30. 5/6
  31. 13/12
  32. 1
  33. 7/8
  34. 2/35
  35. 7/6
  36. 3/20
  37. 9/22
  38. 1/9
  39. 13/15
  40. 13/10

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