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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 161 · 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. 1.2/6 + 1/6 =
  2. 2.2/4 + 4/6 =
  3. 3.7/8 − 4/6 =
  4. 4.1/2 + 10/11 =
  5. 5.6/9 + 1/5 =
  6. 6.2/6 + 1/4 =
  7. 7.4/5 + 3/12 =
  8. 8.2/10 + 3/6 =
  9. 9.1/12 + 1/7 =
  10. 10.5/11 + 1/11 =
  11. 11.1/4 + 8/12 =
  12. 12.3/4 − 1/9 =
  13. 13.4/7 + 1/4 =
  14. 14.2/5 + 1/10 =
  15. 15.8/10 + 5/7 =
  16. 16.1/3 + 5/7 =
  17. 17.7/12 − 3/10 =
  18. 18.4/5 − 3/8 =
  19. 19.3/5 + 1/3 =
  20. 20.2/3 + 1/4 =
  21. 21.4/10 + 1/2 =
  22. 22.6/9 + 3/5 =
  23. 23.5/6 − 6/8 =
  24. 24.1/2 + 3/10 =
  25. 25.3/5 − 1/6 =
  26. 26.4/12 + 3/4 =
  27. 27.1/2 + 1/3 =
  28. 28.5/7 + 5/7 =
  29. 29.1/5 + 1/5 =
  30. 30.3/4 + 1/2 =
  31. 31.2/5 − 1/5 =
  32. 32.5/8 − 1/3 =
  33. 33.1/2 + 3/11 =
  34. 34.1/3 + 2/5 =
  35. 35.1/2 − 1/5 =
  36. 36.5/8 + 8/9 =
  37. 37.4/5 − 2/12 =
  38. 38.2/5 + 4/9 =
  39. 39.2/3 + 8/10 =
  40. 40.3/7 − 4/12 =

Answer key

  1. 1/2
  2. 7/6
  3. 5/24
  4. 31/22
  5. 13/15
  6. 7/12
  7. 21/20
  8. 7/10
  9. 19/84
  10. 6/11
  11. 11/12
  12. 23/36
  13. 23/28
  14. 1/2
  15. 53/35
  16. 22/21
  17. 17/60
  18. 17/40
  19. 14/15
  20. 11/12
  21. 9/10
  22. 19/15
  23. 1/12
  24. 4/5
  25. 13/30
  26. 13/12
  27. 5/6
  28. 10/7
  29. 2/5
  30. 5/4
  31. 1/5
  32. 7/24
  33. 17/22
  34. 11/15
  35. 3/10
  36. 109/72
  37. 19/30
  38. 38/45
  39. 22/15
  40. 2/21

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