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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 12 · 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. 1.5/8 − 1/2 =
  2. 2.2/3 − 3/11 =
  3. 3.2/3 − 1/2 =
  4. 4.4/9 + 6/7 =
  5. 5.8/9 + 6/11 =
  6. 6.5/7 − 1/3 =
  7. 7.10/12 − 4/5 =
  8. 8.2/12 + 2/6 =
  9. 9.1/5 + 2/3 =
  10. 10.2/4 − 1/4 =
  11. 11.6/11 + 1/2 =
  12. 12.2/7 + 1/4 =
  13. 13.2/4 + 6/9 =
  14. 14.1/6 + 7/9 =
  15. 15.1/2 − 2/5 =
  16. 16.2/9 + 2/11 =
  17. 17.2/10 + 4/10 =
  18. 18.2/3 + 2/3 =
  19. 19.2/7 + 6/7 =
  20. 20.3/5 − 2/7 =
  21. 21.1/3 + 2/3 =
  22. 22.2/4 − 3/12 =
  23. 23.1/2 + 10/12 =
  24. 24.10/11 − 1/2 =
  25. 25.5/11 − 3/12 =
  26. 26.2/3 + 10/11 =
  27. 27.1/11 + 2/9 =
  28. 28.6/7 − 6/9 =
  29. 29.9/10 − 1/3 =
  30. 30.5/10 − 3/7 =
  31. 31.2/4 − 3/10 =
  32. 32.11/12 + 2/5 =
  33. 33.5/8 − 2/11 =
  34. 34.4/7 + 1/7 =
  35. 35.8/9 − 1/7 =
  36. 36.2/4 + 5/8 =
  37. 37.1/4 + 3/7 =
  38. 38.2/8 + 1/2 =
  39. 39.4/5 + 1/10 =
  40. 40.1/8 − 1/10 =

Answer key

  1. 1/8
  2. 13/33
  3. 1/6
  4. 82/63
  5. 142/99
  6. 8/21
  7. 1/30
  8. 1/2
  9. 13/15
  10. 1/4
  11. 23/22
  12. 15/28
  13. 7/6
  14. 17/18
  15. 1/10
  16. 40/99
  17. 3/5
  18. 4/3
  19. 8/7
  20. 11/35
  21. 1
  22. 1/4
  23. 4/3
  24. 9/22
  25. 9/44
  26. 52/33
  27. 31/99
  28. 4/21
  29. 17/30
  30. 1/14
  31. 1/5
  32. 79/60
  33. 39/88
  34. 5/7
  35. 47/63
  36. 9/8
  37. 19/28
  38. 3/4
  39. 9/10
  40. 1/40

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