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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 689 · 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. 1.4/10 − 2/6 =
  2. 2.3/7 + 4/5 =
  3. 3.2/9 + 7/8 =
  4. 4.2/3 + 3/4 =
  5. 5.2/4 + 10/11 =
  6. 6.8/10 + 1/2 =
  7. 7.2/3 + 7/12 =
  8. 8.2/6 − 1/9 =
  9. 9.9/10 − 3/8 =
  10. 10.6/7 − 1/8 =
  11. 11.3/4 − 5/9 =
  12. 12.1/8 + 2/10 =
  13. 13.7/11 − 2/5 =
  14. 14.1/3 + 3/8 =
  15. 15.10/12 − 1/12 =
  16. 16.2/3 − 2/4 =
  17. 17.4/6 + 2/12 =
  18. 18.3/9 + 1/3 =
  19. 19.1/2 + 6/9 =
  20. 20.2/3 − 3/6 =
  21. 21.3/4 + 1/4 =
  22. 22.1/2 + 7/9 =
  23. 23.4/5 + 1/9 =
  24. 24.9/11 − 4/5 =
  25. 25.1/5 + 1/3 =
  26. 26.1/4 + 1/10 =
  27. 27.2/12 + 2/3 =
  28. 28.2/5 + 1/4 =
  29. 29.1/2 − 1/11 =
  30. 30.7/9 − 4/7 =
  31. 31.1/6 + 2/5 =
  32. 32.11/12 − 5/9 =
  33. 33.1/8 + 3/4 =
  34. 34.1/4 + 5/6 =
  35. 35.4/5 − 2/12 =
  36. 36.2/3 − 1/4 =
  37. 37.3/6 + 3/10 =
  38. 38.4/7 + 1/2 =
  39. 39.3/12 + 8/9 =
  40. 40.2/10 + 1/6 =

Answer key

  1. 1/15
  2. 43/35
  3. 79/72
  4. 17/12
  5. 31/22
  6. 13/10
  7. 5/4
  8. 2/9
  9. 21/40
  10. 41/56
  11. 7/36
  12. 13/40
  13. 13/55
  14. 17/24
  15. 3/4
  16. 1/6
  17. 5/6
  18. 2/3
  19. 7/6
  20. 1/6
  21. 1
  22. 23/18
  23. 41/45
  24. 1/55
  25. 8/15
  26. 7/20
  27. 5/6
  28. 13/20
  29. 9/22
  30. 13/63
  31. 17/30
  32. 13/36
  33. 7/8
  34. 13/12
  35. 19/30
  36. 5/12
  37. 4/5
  38. 15/14
  39. 41/36
  40. 11/30

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