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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 840 · 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. 1.3/4 − 5/8 =
  2. 2.3/10 + 1/12 =
  3. 3.8/12 − 6/10 =
  4. 4.3/12 + 6/11 =
  5. 5.11/12 − 2/3 =
  6. 6.2/3 + 1/2 =
  7. 7.6/8 − 2/3 =
  8. 8.2/7 + 6/8 =
  9. 9.3/4 + 1/2 =
  10. 10.1/8 + 2/4 =
  11. 11.2/8 − 1/9 =
  12. 12.1/2 + 4/6 =
  13. 13.2/3 + 7/9 =
  14. 14.1/2 + 4/5 =
  15. 15.4/5 + 6/12 =
  16. 16.3/4 − 6/12 =
  17. 17.4/9 − 1/4 =
  18. 18.6/12 + 2/5 =
  19. 19.1/2 + 1/11 =
  20. 20.2/4 − 1/4 =
  21. 21.3/4 − 1/4 =
  22. 22.5/6 + 3/8 =
  23. 23.2/4 + 9/12 =
  24. 24.4/7 + 1/11 =
  25. 25.10/11 − 2/3 =
  26. 26.3/4 + 9/12 =
  27. 27.5/6 − 1/2 =
  28. 28.2/4 − 1/3 =
  29. 29.2/5 + 1/2 =
  30. 30.7/11 − 3/5 =
  31. 31.1/2 + 4/12 =
  32. 32.5/12 − 1/12 =
  33. 33.9/11 + 2/10 =
  34. 34.1/4 + 1/9 =
  35. 35.1/4 − 1/7 =
  36. 36.5/10 − 1/7 =
  37. 37.6/7 + 3/5 =
  38. 38.6/7 − 4/6 =
  39. 39.5/12 + 3/4 =
  40. 40.6/10 − 1/6 =

Answer key

  1. 1/8
  2. 23/60
  3. 1/15
  4. 35/44
  5. 1/4
  6. 7/6
  7. 1/12
  8. 29/28
  9. 5/4
  10. 5/8
  11. 5/36
  12. 7/6
  13. 13/9
  14. 13/10
  15. 13/10
  16. 1/4
  17. 7/36
  18. 9/10
  19. 13/22
  20. 1/4
  21. 1/2
  22. 29/24
  23. 5/4
  24. 51/77
  25. 8/33
  26. 3/2
  27. 1/3
  28. 1/6
  29. 9/10
  30. 2/55
  31. 5/6
  32. 1/3
  33. 56/55
  34. 13/36
  35. 3/28
  36. 5/14
  37. 51/35
  38. 4/21
  39. 7/6
  40. 13/30

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