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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 38 · 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 − 3/5 =
  2. 2.1/5 + 5/10 =
  3. 3.1/2 + 2/7 =
  4. 4.1/3 − 1/6 =
  5. 5.5/7 + 5/6 =
  6. 6.6/9 + 2/6 =
  7. 7.3/7 − 2/6 =
  8. 8.2/10 + 2/11 =
  9. 9.3/4 + 1/5 =
  10. 10.7/12 + 7/12 =
  11. 11.7/11 + 7/11 =
  12. 12.4/11 + 2/9 =
  13. 13.3/4 + 5/11 =
  14. 14.1/2 + 9/10 =
  15. 15.10/11 − 3/4 =
  16. 16.6/7 − 1/2 =
  17. 17.8/11 + 2/6 =
  18. 18.4/11 + 2/3 =
  19. 19.10/12 + 2/3 =
  20. 20.2/3 − 1/4 =
  21. 21.2/5 + 1/5 =
  22. 22.4/6 + 1/6 =
  23. 23.3/7 − 1/6 =
  24. 24.6/12 + 1/9 =
  25. 25.6/7 + 2/3 =
  26. 26.2/7 − 1/4 =
  27. 27.5/10 − 1/5 =
  28. 28.1/3 + 5/11 =
  29. 29.4/5 + 7/12 =
  30. 30.1/7 + 6/9 =
  31. 31.1/2 − 1/3 =
  32. 32.2/3 + 2/4 =
  33. 33.5/11 − 3/8 =
  34. 34.3/4 + 3/5 =
  35. 35.1/10 + 1/2 =
  36. 36.5/7 − 5/11 =
  37. 37.1/2 − 2/10 =
  38. 38.9/10 + 1/8 =
  39. 39.5/12 + 3/12 =
  40. 40.6/11 − 1/3 =

Answer key

  1. 1/40
  2. 7/10
  3. 11/14
  4. 1/6
  5. 65/42
  6. 1
  7. 2/21
  8. 21/55
  9. 19/20
  10. 7/6
  11. 14/11
  12. 58/99
  13. 53/44
  14. 7/5
  15. 7/44
  16. 5/14
  17. 35/33
  18. 34/33
  19. 3/2
  20. 5/12
  21. 3/5
  22. 5/6
  23. 11/42
  24. 11/18
  25. 32/21
  26. 1/28
  27. 3/10
  28. 26/33
  29. 83/60
  30. 17/21
  31. 1/6
  32. 7/6
  33. 7/88
  34. 27/20
  35. 3/5
  36. 20/77
  37. 3/10
  38. 41/40
  39. 2/3
  40. 7/33

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