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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 63 · 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 + 1/5 =
  2. 2.4/10 + 6/9 =
  3. 3.1/2 + 1/7 =
  4. 4.5/7 + 1/2 =
  5. 5.4/5 + 1/8 =
  6. 6.1/2 − 1/8 =
  7. 7.1/2 + 8/11 =
  8. 8.6/10 + 6/7 =
  9. 9.2/3 + 3/4 =
  10. 10.3/4 + 3/5 =
  11. 11.4/7 − 1/2 =
  12. 12.3/5 + 9/10 =
  13. 13.4/7 + 2/7 =
  14. 14.8/9 − 1/3 =
  15. 15.1/2 − 1/4 =
  16. 16.6/11 + 2/3 =
  17. 17.4/5 − 4/10 =
  18. 18.4/5 − 3/9 =
  19. 19.2/3 + 1/2 =
  20. 20.10/12 + 1/12 =
  21. 21.8/10 + 5/6 =
  22. 22.1/2 + 3/10 =
  23. 23.3/9 + 1/3 =
  24. 24.2/3 + 1/2 =
  25. 25.2/3 + 3/4 =
  26. 26.7/10 + 2/6 =
  27. 27.5/6 + 1/3 =
  28. 28.1/8 + 1/12 =
  29. 29.7/8 + 8/12 =
  30. 30.2/5 + 5/10 =
  31. 31.1/2 + 2/8 =
  32. 32.1/3 − 1/7 =
  33. 33.5/9 − 2/5 =
  34. 34.2/4 + 1/2 =
  35. 35.7/8 + 6/8 =
  36. 36.7/10 − 3/6 =
  37. 37.4/12 + 1/8 =
  38. 38.2/7 + 1/4 =
  39. 39.7/10 − 2/8 =
  40. 40.7/9 − 6/9 =

Answer key

  1. 3/5
  2. 16/15
  3. 9/14
  4. 17/14
  5. 37/40
  6. 3/8
  7. 27/22
  8. 51/35
  9. 17/12
  10. 27/20
  11. 1/14
  12. 3/2
  13. 6/7
  14. 5/9
  15. 1/4
  16. 40/33
  17. 2/5
  18. 7/15
  19. 7/6
  20. 11/12
  21. 49/30
  22. 4/5
  23. 2/3
  24. 7/6
  25. 17/12
  26. 31/30
  27. 7/6
  28. 5/24
  29. 37/24
  30. 9/10
  31. 3/4
  32. 4/21
  33. 7/45
  34. 1
  35. 13/8
  36. 1/5
  37. 11/24
  38. 15/28
  39. 9/20
  40. 1/9

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