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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 380 · 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 − 2/5 =
  2. 2.3/4 + 1/2 =
  3. 3.4/6 − 1/8 =
  4. 4.5/6 − 2/7 =
  5. 5.5/7 + 2/3 =
  6. 6.4/7 + 4/9 =
  7. 7.2/4 + 3/6 =
  8. 8.10/12 + 6/8 =
  9. 9.1/11 + 2/3 =
  10. 10.1/4 + 2/6 =
  11. 11.4/6 + 2/5 =
  12. 12.10/11 − 1/6 =
  13. 13.5/8 − 3/7 =
  14. 14.6/10 + 1/3 =
  15. 15.4/11 + 1/4 =
  16. 16.2/5 + 3/5 =
  17. 17.6/8 − 5/10 =
  18. 18.1/11 + 2/4 =
  19. 19.1/4 + 2/5 =
  20. 20.3/5 + 2/5 =
  21. 21.1/2 + 2/7 =
  22. 22.6/11 − 1/4 =
  23. 23.1/3 + 1/2 =
  24. 24.2/8 + 11/12 =
  25. 25.5/7 + 9/12 =
  26. 26.7/10 − 1/4 =
  27. 27.7/10 + 2/5 =
  28. 28.6/8 − 1/9 =
  29. 29.7/11 + 2/3 =
  30. 30.2/5 − 1/12 =
  31. 31.9/10 − 7/10 =
  32. 32.2/10 + 2/10 =
  33. 33.1/2 − 4/11 =
  34. 34.3/4 + 3/12 =
  35. 35.1/2 − 3/10 =
  36. 36.5/10 + 4/8 =
  37. 37.6/7 + 3/12 =
  38. 38.6/7 + 2/10 =
  39. 39.2/4 + 3/6 =
  40. 40.1/6 + 1/2 =

Answer key

  1. 2/5
  2. 5/4
  3. 13/24
  4. 23/42
  5. 29/21
  6. 64/63
  7. 1
  8. 19/12
  9. 25/33
  10. 7/12
  11. 16/15
  12. 49/66
  13. 11/56
  14. 14/15
  15. 27/44
  16. 1
  17. 1/4
  18. 13/22
  19. 13/20
  20. 1
  21. 11/14
  22. 13/44
  23. 5/6
  24. 7/6
  25. 41/28
  26. 9/20
  27. 11/10
  28. 23/36
  29. 43/33
  30. 19/60
  31. 1/5
  32. 2/5
  33. 3/22
  34. 1
  35. 1/5
  36. 1
  37. 31/28
  38. 37/35
  39. 1
  40. 2/3

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