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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 639 · 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. 1.5/10 + 6/9 =
  2. 2.1/2 − 5/12 =
  3. 3.7/11 + 6/7 =
  4. 4.2/3 + 7/9 =
  5. 5.5/8 + 1/2 =
  6. 6.7/10 + 4/5 =
  7. 7.4/6 + 9/11 =
  8. 8.2/8 + 7/12 =
  9. 9.3/6 + 1/2 =
  10. 10.2/3 + 7/9 =
  11. 11.3/4 − 2/9 =
  12. 12.4/5 + 3/7 =
  13. 13.5/8 + 1/12 =
  14. 14.6/8 − 2/6 =
  15. 15.2/3 + 4/11 =
  16. 16.1/3 + 3/5 =
  17. 17.1/2 − 1/6 =
  18. 18.1/2 + 3/4 =
  19. 19.2/9 + 5/6 =
  20. 20.2/8 − 1/6 =
  21. 21.10/12 + 7/10 =
  22. 22.5/6 + 1/7 =
  23. 23.1/2 + 3/4 =
  24. 24.5/8 − 2/6 =
  25. 25.1/6 + 6/7 =
  26. 26.5/7 − 1/4 =
  27. 27.1/6 + 1/6 =
  28. 28.3/10 − 3/12 =
  29. 29.2/3 − 1/2 =
  30. 30.2/3 − 1/2 =
  31. 31.1/2 + 2/10 =
  32. 32.8/11 + 1/9 =
  33. 33.1/5 + 5/8 =
  34. 34.1/2 + 1/2 =
  35. 35.9/10 − 3/12 =
  36. 36.1/2 + 2/4 =
  37. 37.6/11 + 6/10 =
  38. 38.8/10 + 1/4 =
  39. 39.1/2 − 1/6 =
  40. 40.1/7 + 2/6 =

Answer key

  1. 7/6
  2. 1/12
  3. 115/77
  4. 13/9
  5. 9/8
  6. 3/2
  7. 49/33
  8. 5/6
  9. 1
  10. 13/9
  11. 19/36
  12. 43/35
  13. 17/24
  14. 5/12
  15. 34/33
  16. 14/15
  17. 1/3
  18. 5/4
  19. 19/18
  20. 1/12
  21. 23/15
  22. 41/42
  23. 5/4
  24. 7/24
  25. 43/42
  26. 13/28
  27. 1/3
  28. 1/20
  29. 1/6
  30. 1/6
  31. 7/10
  32. 83/99
  33. 33/40
  34. 1
  35. 13/20
  36. 1
  37. 63/55
  38. 21/20
  39. 1/3
  40. 10/21

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