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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 51 · 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 + 1/4 =
  2. 2.1/2 + 1/2 =
  3. 3.10/12 + 6/10 =
  4. 4.2/5 − 1/9 =
  5. 5.5/7 + 1/3 =
  6. 6.2/3 + 7/12 =
  7. 7.6/8 + 3/6 =
  8. 8.1/4 + 2/11 =
  9. 9.3/5 + 7/12 =
  10. 10.1/2 − 1/4 =
  11. 11.1/2 + 2/7 =
  12. 12.4/5 + 1/3 =
  13. 13.1/2 + 4/10 =
  14. 14.4/6 + 2/4 =
  15. 15.7/10 − 2/8 =
  16. 16.1/3 + 1/7 =
  17. 17.2/12 + 5/10 =
  18. 18.4/5 − 1/2 =
  19. 19.4/8 − 4/10 =
  20. 20.9/10 + 2/12 =
  21. 21.6/11 + 1/2 =
  22. 22.8/12 − 1/2 =
  23. 23.2/10 + 1/3 =
  24. 24.1/5 + 6/12 =
  25. 25.1/4 + 1/4 =
  26. 26.4/10 − 2/8 =
  27. 27.3/12 + 5/9 =
  28. 28.9/11 − 1/3 =
  29. 29.8/10 + 2/7 =
  30. 30.8/11 − 2/7 =
  31. 31.6/7 − 2/8 =
  32. 32.1/7 − 1/10 =
  33. 33.1/2 + 3/6 =
  34. 34.1/6 + 7/8 =
  35. 35.2/6 + 3/8 =
  36. 36.2/9 + 2/12 =
  37. 37.4/5 − 1/5 =
  38. 38.5/10 + 1/2 =
  39. 39.8/10 − 1/4 =
  40. 40.2/8 + 2/10 =

Answer key

  1. 1
  2. 1
  3. 43/30
  4. 13/45
  5. 22/21
  6. 5/4
  7. 5/4
  8. 19/44
  9. 71/60
  10. 1/4
  11. 11/14
  12. 17/15
  13. 9/10
  14. 7/6
  15. 9/20
  16. 10/21
  17. 2/3
  18. 3/10
  19. 1/10
  20. 16/15
  21. 23/22
  22. 1/6
  23. 8/15
  24. 7/10
  25. 1/2
  26. 3/20
  27. 29/36
  28. 16/33
  29. 38/35
  30. 34/77
  31. 17/28
  32. 3/70
  33. 1
  34. 25/24
  35. 17/24
  36. 7/18
  37. 3/5
  38. 1
  39. 11/20
  40. 9/20

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