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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 281 · 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. 1.1/4 + 7/11 =
  2. 2.1/6 + 2/3 =
  3. 3.3/5 − 1/2 =
  4. 4.8/9 − 1/2 =
  5. 5.2/3 − 1/7 =
  6. 6.3/7 + 3/7 =
  7. 7.4/5 + 1/2 =
  8. 8.2/5 + 2/4 =
  9. 9.1/2 + 8/10 =
  10. 10.7/12 + 1/2 =
  11. 11.2/8 − 1/9 =
  12. 12.7/8 − 2/5 =
  13. 13.8/12 − 3/7 =
  14. 14.1/4 + 2/4 =
  15. 15.7/10 + 7/10 =
  16. 16.3/4 − 5/9 =
  17. 17.2/3 + 2/10 =
  18. 18.1/3 + 1/2 =
  19. 19.2/6 + 3/6 =
  20. 20.10/12 + 4/10 =
  21. 21.4/5 − 1/8 =
  22. 22.1/2 + 1/10 =
  23. 23.2/8 + 1/2 =
  24. 24.1/4 + 2/9 =
  25. 25.8/10 + 4/5 =
  26. 26.7/10 + 4/5 =
  27. 27.11/12 − 2/7 =
  28. 28.2/9 + 8/11 =
  29. 29.2/8 − 1/8 =
  30. 30.2/11 + 11/12 =
  31. 31.2/3 + 7/9 =
  32. 32.7/9 + 3/4 =
  33. 33.2/4 + 1/7 =
  34. 34.4/10 + 2/5 =
  35. 35.1/8 + 1/2 =
  36. 36.1/7 + 7/8 =
  37. 37.6/11 + 2/11 =
  38. 38.1/6 + 2/9 =
  39. 39.4/5 − 5/11 =
  40. 40.4/5 − 2/8 =

Answer key

  1. 39/44
  2. 5/6
  3. 1/10
  4. 7/18
  5. 11/21
  6. 6/7
  7. 13/10
  8. 9/10
  9. 13/10
  10. 13/12
  11. 5/36
  12. 19/40
  13. 5/21
  14. 3/4
  15. 7/5
  16. 7/36
  17. 13/15
  18. 5/6
  19. 5/6
  20. 37/30
  21. 27/40
  22. 3/5
  23. 3/4
  24. 17/36
  25. 8/5
  26. 3/2
  27. 53/84
  28. 94/99
  29. 1/8
  30. 145/132
  31. 13/9
  32. 55/36
  33. 9/14
  34. 4/5
  35. 5/8
  36. 57/56
  37. 8/11
  38. 7/18
  39. 19/55
  40. 11/20

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