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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 745 · 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. 1.1/12 + 4/6 =
  2. 2.9/10 + 4/5 =
  3. 3.8/12 − 1/3 =
  4. 4.5/7 − 1/11 =
  5. 5.6/11 + 6/11 =
  6. 6.2/7 + 3/9 =
  7. 7.5/6 + 1/2 =
  8. 8.6/7 + 2/3 =
  9. 9.1/2 + 4/11 =
  10. 10.5/8 + 7/12 =
  11. 11.1/2 − 3/10 =
  12. 12.4/11 + 3/5 =
  13. 13.1/10 + 10/11 =
  14. 14.3/4 − 1/6 =
  15. 15.2/4 − 3/11 =
  16. 16.5/6 − 3/6 =
  17. 17.1/2 − 2/7 =
  18. 18.2/4 + 1/10 =
  19. 19.4/9 + 3/10 =
  20. 20.1/2 − 1/4 =
  21. 21.1/9 + 3/4 =
  22. 22.2/8 + 2/8 =
  23. 23.5/6 + 1/3 =
  24. 24.1/2 − 2/12 =
  25. 25.1/4 + 1/7 =
  26. 26.1/5 + 8/11 =
  27. 27.7/9 + 8/11 =
  28. 28.8/9 − 1/6 =
  29. 29.1/3 + 6/11 =
  30. 30.4/9 + 2/12 =
  31. 31.6/9 − 1/9 =
  32. 32.2/3 − 3/12 =
  33. 33.1/2 + 4/8 =
  34. 34.3/4 + 2/4 =
  35. 35.7/8 + 1/5 =
  36. 36.2/10 + 8/9 =
  37. 37.1/2 + 7/12 =
  38. 38.7/9 − 4/10 =
  39. 39.6/10 + 5/12 =
  40. 40.5/7 + 1/2 =

Answer key

  1. 3/4
  2. 17/10
  3. 1/3
  4. 48/77
  5. 12/11
  6. 13/21
  7. 4/3
  8. 32/21
  9. 19/22
  10. 29/24
  11. 1/5
  12. 53/55
  13. 111/110
  14. 7/12
  15. 5/22
  16. 1/3
  17. 3/14
  18. 3/5
  19. 67/90
  20. 1/4
  21. 31/36
  22. 1/2
  23. 7/6
  24. 1/3
  25. 11/28
  26. 51/55
  27. 149/99
  28. 13/18
  29. 29/33
  30. 11/18
  31. 5/9
  32. 5/12
  33. 1
  34. 5/4
  35. 43/40
  36. 49/45
  37. 13/12
  38. 17/45
  39. 61/60
  40. 17/14

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