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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 6 · 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. 1.1/9 + 1/12 =
  2. 2.2/12 + 2/3 =
  3. 3.3/5 + 3/7 =
  4. 4.3/4 − 2/7 =
  5. 5.1/2 − 1/5 =
  6. 6.1/2 + 1/4 =
  7. 7.1/9 + 2/9 =
  8. 8.9/12 − 3/12 =
  9. 9.1/2 + 4/7 =
  10. 10.3/12 + 2/8 =
  11. 11.6/9 + 1/6 =
  12. 12.2/7 + 9/11 =
  13. 13.2/5 − 2/12 =
  14. 14.8/11 + 3/4 =
  15. 15.6/12 + 2/6 =
  16. 16.3/4 − 4/9 =
  17. 17.2/9 + 2/8 =
  18. 18.5/8 − 3/5 =
  19. 19.1/5 + 6/7 =
  20. 20.2/10 + 5/11 =
  21. 21.1/2 + 8/11 =
  22. 22.1/7 + 2/4 =
  23. 23.3/4 − 1/5 =
  24. 24.4/6 + 2/7 =
  25. 25.2/4 + 1/2 =
  26. 26.2/7 + 5/11 =
  27. 27.3/6 − 1/3 =
  28. 28.1/7 + 1/2 =
  29. 29.2/8 + 3/11 =
  30. 30.2/3 + 5/10 =
  31. 31.1/7 + 1/4 =
  32. 32.10/11 + 1/10 =
  33. 33.2/3 + 10/11 =
  34. 34.2/4 − 1/6 =
  35. 35.1/5 + 1/6 =
  36. 36.1/3 + 6/11 =
  37. 37.6/8 − 2/4 =
  38. 38.3/4 + 1/2 =
  39. 39.1/3 − 1/12 =
  40. 40.11/12 − 1/4 =

Answer key

  1. 7/36
  2. 5/6
  3. 36/35
  4. 13/28
  5. 3/10
  6. 3/4
  7. 1/3
  8. 1/2
  9. 15/14
  10. 1/2
  11. 5/6
  12. 85/77
  13. 7/30
  14. 65/44
  15. 5/6
  16. 11/36
  17. 17/36
  18. 1/40
  19. 37/35
  20. 36/55
  21. 27/22
  22. 9/14
  23. 11/20
  24. 20/21
  25. 1
  26. 57/77
  27. 1/6
  28. 9/14
  29. 23/44
  30. 7/6
  31. 11/28
  32. 111/110
  33. 52/33
  34. 1/3
  35. 11/30
  36. 29/33
  37. 1/4
  38. 5/4
  39. 1/4
  40. 2/3

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