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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 798 · 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. 1.6/8 + 8/9 =
  2. 2.1/3 − 1/5 =
  3. 3.5/6 − 4/6 =
  4. 4.3/7 − 2/7 =
  5. 5.10/12 − 1/5 =
  6. 6.2/6 + 10/12 =
  7. 7.1/2 + 3/9 =
  8. 8.3/4 + 1/2 =
  9. 9.1/5 + 2/5 =
  10. 10.2/4 + 1/2 =
  11. 11.2/5 + 1/4 =
  12. 12.1/2 − 1/5 =
  13. 13.1/12 + 2/9 =
  14. 14.1/2 + 2/12 =
  15. 15.1/2 − 1/9 =
  16. 16.2/6 − 2/10 =
  17. 17.1/4 + 1/12 =
  18. 18.6/7 + 1/4 =
  19. 19.1/2 − 3/10 =
  20. 20.4/7 − 1/2 =
  21. 21.2/3 + 5/8 =
  22. 22.2/4 + 10/11 =
  23. 23.7/8 − 1/2 =
  24. 24.7/12 − 3/8 =
  25. 25.2/5 + 9/10 =
  26. 26.5/8 + 1/5 =
  27. 27.6/12 + 1/2 =
  28. 28.4/7 − 4/10 =
  29. 29.1/2 + 3/8 =
  30. 30.2/8 + 4/7 =
  31. 31.2/6 + 4/5 =
  32. 32.4/7 + 1/4 =
  33. 33.5/11 − 1/6 =
  34. 34.9/11 + 3/5 =
  35. 35.3/6 + 4/8 =
  36. 36.3/4 − 3/10 =
  37. 37.1/10 + 4/12 =
  38. 38.3/4 − 1/2 =
  39. 39.1/8 + 4/7 =
  40. 40.6/8 − 3/8 =

Answer key

  1. 59/36
  2. 2/15
  3. 1/6
  4. 1/7
  5. 19/30
  6. 7/6
  7. 5/6
  8. 5/4
  9. 3/5
  10. 1
  11. 13/20
  12. 3/10
  13. 11/36
  14. 2/3
  15. 7/18
  16. 2/15
  17. 1/3
  18. 31/28
  19. 1/5
  20. 1/14
  21. 31/24
  22. 31/22
  23. 3/8
  24. 5/24
  25. 13/10
  26. 33/40
  27. 1
  28. 6/35
  29. 7/8
  30. 23/28
  31. 17/15
  32. 23/28
  33. 19/66
  34. 78/55
  35. 1
  36. 9/20
  37. 13/30
  38. 1/4
  39. 39/56
  40. 3/8

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