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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 42 · 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. 1.8/10 − 5/7 =
  2. 2.8/10 − 1/2 =
  3. 3.3/4 − 2/4 =
  4. 4.1/7 + 1/4 =
  5. 5.2/3 − 5/8 =
  6. 6.2/7 + 4/12 =
  7. 7.10/12 + 1/3 =
  8. 8.3/10 + 2/9 =
  9. 9.4/5 − 2/7 =
  10. 10.10/11 + 7/12 =
  11. 11.7/11 − 3/5 =
  12. 12.9/11 + 7/11 =
  13. 13.3/4 − 1/5 =
  14. 14.2/3 − 2/4 =
  15. 15.1/2 − 3/8 =
  16. 16.2/4 − 1/6 =
  17. 17.9/12 + 1/4 =
  18. 18.1/4 + 2/4 =
  19. 19.5/9 − 1/2 =
  20. 20.3/8 + 5/10 =
  21. 21.3/11 + 3/5 =
  22. 22.7/8 − 1/2 =
  23. 23.6/7 − 3/4 =
  24. 24.1/2 + 1/11 =
  25. 25.5/8 − 4/9 =
  26. 26.1/2 − 3/9 =
  27. 27.1/2 − 4/9 =
  28. 28.5/6 − 1/2 =
  29. 29.2/8 + 5/10 =
  30. 30.2/3 + 4/5 =
  31. 31.2/8 + 2/3 =
  32. 32.2/9 + 11/12 =
  33. 33.1/4 + 1/10 =
  34. 34.1/2 + 1/8 =
  35. 35.2/3 − 4/7 =
  36. 36.2/10 + 2/3 =
  37. 37.5/7 + 1/4 =
  38. 38.1/2 − 1/6 =
  39. 39.1/3 + 1/2 =
  40. 40.3/5 − 4/11 =

Answer key

  1. 3/35
  2. 3/10
  3. 1/4
  4. 11/28
  5. 1/24
  6. 13/21
  7. 7/6
  8. 47/90
  9. 18/35
  10. 197/132
  11. 2/55
  12. 16/11
  13. 11/20
  14. 1/6
  15. 1/8
  16. 1/3
  17. 1
  18. 3/4
  19. 1/18
  20. 7/8
  21. 48/55
  22. 3/8
  23. 3/28
  24. 13/22
  25. 13/72
  26. 1/6
  27. 1/18
  28. 1/3
  29. 3/4
  30. 22/15
  31. 11/12
  32. 41/36
  33. 7/20
  34. 5/8
  35. 2/21
  36. 13/15
  37. 27/28
  38. 1/3
  39. 5/6
  40. 13/55

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