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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 601 · 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. 1.2/4 − 3/11 =
  2. 2.8/10 − 5/12 =
  3. 3.4/7 − 1/3 =
  4. 4.2/9 + 4/6 =
  5. 5.6/7 + 4/6 =
  6. 6.7/9 − 5/9 =
  7. 7.6/11 + 4/8 =
  8. 8.9/11 − 2/8 =
  9. 9.1/11 + 1/3 =
  10. 10.1/2 + 8/11 =
  11. 11.2/9 + 1/4 =
  12. 12.2/11 + 3/6 =
  13. 13.7/10 + 2/9 =
  14. 14.3/4 + 8/11 =
  15. 15.4/7 − 2/8 =
  16. 16.10/11 − 2/6 =
  17. 17.4/7 + 1/6 =
  18. 18.6/8 + 5/8 =
  19. 19.2/4 + 4/6 =
  20. 20.11/12 − 4/6 =
  21. 21.5/6 + 2/3 =
  22. 22.3/7 − 4/11 =
  23. 23.3/4 + 2/4 =
  24. 24.1/2 − 3/8 =
  25. 25.2/3 + 5/6 =
  26. 26.5/10 + 6/7 =
  27. 27.4/7 + 1/3 =
  28. 28.7/8 − 1/7 =
  29. 29.1/5 + 4/8 =
  30. 30.4/6 − 3/11 =
  31. 31.2/8 + 4/7 =
  32. 32.6/10 − 2/6 =
  33. 33.1/5 + 1/2 =
  34. 34.2/10 − 1/9 =
  35. 35.1/3 + 11/12 =
  36. 36.5/11 + 7/11 =
  37. 37.1/6 + 3/4 =
  38. 38.2/7 + 3/4 =
  39. 39.4/6 − 1/2 =
  40. 40.7/10 − 1/4 =

Answer key

  1. 5/22
  2. 23/60
  3. 5/21
  4. 8/9
  5. 32/21
  6. 2/9
  7. 23/22
  8. 25/44
  9. 14/33
  10. 27/22
  11. 17/36
  12. 15/22
  13. 83/90
  14. 65/44
  15. 9/28
  16. 19/33
  17. 31/42
  18. 11/8
  19. 7/6
  20. 1/4
  21. 3/2
  22. 5/77
  23. 5/4
  24. 1/8
  25. 3/2
  26. 19/14
  27. 19/21
  28. 41/56
  29. 7/10
  30. 13/33
  31. 23/28
  32. 4/15
  33. 7/10
  34. 4/45
  35. 5/4
  36. 12/11
  37. 11/12
  38. 29/28
  39. 1/6
  40. 9/20

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