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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 398 · 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. 1.1/2 − 2/5 =
  2. 2.10/11 + 1/12 =
  3. 3.6/8 + 1/12 =
  4. 4.3/8 + 1/2 =
  5. 5.1/2 + 2/6 =
  6. 6.1/4 + 10/11 =
  7. 7.7/10 − 4/6 =
  8. 8.5/12 + 1/10 =
  9. 9.1/2 − 1/4 =
  10. 10.2/3 + 3/4 =
  11. 11.2/12 + 2/3 =
  12. 12.4/10 + 7/9 =
  13. 13.4/6 + 4/6 =
  14. 14.1/7 + 5/8 =
  15. 15.10/11 − 5/12 =
  16. 16.5/9 + 2/4 =
  17. 17.6/11 + 5/12 =
  18. 18.7/8 + 3/5 =
  19. 19.3/7 + 4/7 =
  20. 20.2/5 − 1/3 =
  21. 21.1/3 − 1/10 =
  22. 22.2/3 + 1/9 =
  23. 23.4/6 − 7/11 =
  24. 24.7/12 − 3/6 =
  25. 25.1/9 + 2/10 =
  26. 26.6/12 + 1/10 =
  27. 27.3/6 + 2/3 =
  28. 28.3/4 + 1/2 =
  29. 29.1/2 + 10/12 =
  30. 30.1/8 + 11/12 =
  31. 31.3/5 + 2/7 =
  32. 32.1/4 + 1/2 =
  33. 33.6/10 + 1/8 =
  34. 34.4/5 + 1/2 =
  35. 35.7/9 + 1/2 =
  36. 36.5/8 + 5/7 =
  37. 37.9/11 − 1/11 =
  38. 38.2/4 − 2/5 =
  39. 39.2/3 − 2/5 =
  40. 40.7/10 − 3/6 =

Answer key

  1. 1/10
  2. 131/132
  3. 5/6
  4. 7/8
  5. 5/6
  6. 51/44
  7. 1/30
  8. 31/60
  9. 1/4
  10. 17/12
  11. 5/6
  12. 53/45
  13. 4/3
  14. 43/56
  15. 65/132
  16. 19/18
  17. 127/132
  18. 59/40
  19. 1
  20. 1/15
  21. 7/30
  22. 7/9
  23. 1/33
  24. 1/12
  25. 14/45
  26. 3/5
  27. 7/6
  28. 5/4
  29. 4/3
  30. 25/24
  31. 31/35
  32. 3/4
  33. 29/40
  34. 13/10
  35. 23/18
  36. 75/56
  37. 8/11
  38. 1/10
  39. 4/15
  40. 1/5

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