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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 801 · 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 − 4/7 =
  2. 2.2/4 − 1/3 =
  3. 3.1/2 + 3/5 =
  4. 4.2/7 − 2/9 =
  5. 5.1/9 + 1/7 =
  6. 6.7/11 − 3/5 =
  7. 7.1/2 + 3/5 =
  8. 8.1/12 + 2/3 =
  9. 9.9/12 − 1/4 =
  10. 10.1/2 − 3/11 =
  11. 11.1/5 + 1/9 =
  12. 12.3/9 + 1/4 =
  13. 13.2/7 − 1/7 =
  14. 14.2/5 + 1/2 =
  15. 15.1/3 + 3/11 =
  16. 16.5/6 − 3/5 =
  17. 17.9/11 − 3/4 =
  18. 18.3/4 − 1/2 =
  19. 19.9/12 + 1/2 =
  20. 20.3/5 + 5/6 =
  21. 21.6/7 + 1/7 =
  22. 22.8/9 + 7/10 =
  23. 23.5/10 + 4/6 =
  24. 24.1/2 − 1/7 =
  25. 25.3/4 − 1/3 =
  26. 26.1/7 + 4/8 =
  27. 27.2/4 + 11/12 =
  28. 28.6/11 + 3/12 =
  29. 29.4/7 + 2/10 =
  30. 30.1/4 + 1/2 =
  31. 31.1/3 − 1/7 =
  32. 32.1/2 + 3/4 =
  33. 33.4/11 + 2/12 =
  34. 34.4/5 − 8/11 =
  35. 35.1/2 + 2/3 =
  36. 36.5/12 + 2/11 =
  37. 37.3/4 − 2/10 =
  38. 38.5/11 + 2/8 =
  39. 39.2/5 − 3/10 =
  40. 40.1/3 + 3/8 =

Answer key

  1. 2/21
  2. 1/6
  3. 11/10
  4. 4/63
  5. 16/63
  6. 2/55
  7. 11/10
  8. 3/4
  9. 1/2
  10. 5/22
  11. 14/45
  12. 7/12
  13. 1/7
  14. 9/10
  15. 20/33
  16. 7/30
  17. 3/44
  18. 1/4
  19. 5/4
  20. 43/30
  21. 1
  22. 143/90
  23. 7/6
  24. 5/14
  25. 5/12
  26. 9/14
  27. 17/12
  28. 35/44
  29. 27/35
  30. 3/4
  31. 4/21
  32. 5/4
  33. 35/66
  34. 4/55
  35. 7/6
  36. 79/132
  37. 11/20
  38. 31/44
  39. 1/10
  40. 17/24

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