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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 266 · 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. 1.2/3 − 1/9 =
  2. 2.5/7 − 6/9 =
  3. 3.1/2 + 5/11 =
  4. 4.1/2 + 6/12 =
  5. 5.1/4 + 3/10 =
  6. 6.3/6 + 1/9 =
  7. 7.1/9 + 3/12 =
  8. 8.1/2 − 5/12 =
  9. 9.10/12 − 6/9 =
  10. 10.4/11 − 1/9 =
  11. 11.3/12 + 10/12 =
  12. 12.4/5 − 3/10 =
  13. 13.2/8 + 2/8 =
  14. 14.8/10 − 6/10 =
  15. 15.8/12 − 1/2 =
  16. 16.2/5 + 11/12 =
  17. 17.4/12 + 10/12 =
  18. 18.8/9 − 4/7 =
  19. 19.9/12 + 1/3 =
  20. 20.6/12 − 2/9 =
  21. 21.1/4 + 5/7 =
  22. 22.10/11 − 4/7 =
  23. 23.1/3 + 2/8 =
  24. 24.9/12 + 2/12 =
  25. 25.7/10 − 1/6 =
  26. 26.1/5 + 2/6 =
  27. 27.6/7 − 2/4 =
  28. 28.3/12 + 5/7 =
  29. 29.6/11 + 3/4 =
  30. 30.9/11 + 7/10 =
  31. 31.3/4 − 5/9 =
  32. 32.1/3 − 2/7 =
  33. 33.5/7 + 1/4 =
  34. 34.3/6 + 2/8 =
  35. 35.3/5 − 1/3 =
  36. 36.7/9 + 2/7 =
  37. 37.2/5 + 4/9 =
  38. 38.8/9 − 1/2 =
  39. 39.2/5 + 6/8 =
  40. 40.1/5 + 5/8 =

Answer key

  1. 5/9
  2. 1/21
  3. 21/22
  4. 1
  5. 11/20
  6. 11/18
  7. 13/36
  8. 1/12
  9. 1/6
  10. 25/99
  11. 13/12
  12. 1/2
  13. 1/2
  14. 1/5
  15. 1/6
  16. 79/60
  17. 7/6
  18. 20/63
  19. 13/12
  20. 5/18
  21. 27/28
  22. 26/77
  23. 7/12
  24. 11/12
  25. 8/15
  26. 8/15
  27. 5/14
  28. 27/28
  29. 57/44
  30. 167/110
  31. 7/36
  32. 1/21
  33. 27/28
  34. 3/4
  35. 4/15
  36. 67/63
  37. 38/45
  38. 7/18
  39. 23/20
  40. 33/40

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