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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 671 · 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. 1.6/12 − 1/5 =
  2. 2.2/3 − 1/5 =
  3. 3.5/7 − 1/10 =
  4. 4.3/9 + 5/7 =
  5. 5.4/6 + 2/11 =
  6. 6.4/8 + 1/4 =
  7. 7.2/3 + 7/12 =
  8. 8.8/10 − 1/2 =
  9. 9.1/3 + 2/6 =
  10. 10.2/8 + 3/4 =
  11. 11.1/4 + 2/5 =
  12. 12.3/4 + 2/4 =
  13. 13.1/4 + 1/3 =
  14. 14.7/10 − 1/12 =
  15. 15.4/9 − 2/6 =
  16. 16.7/9 + 2/4 =
  17. 17.2/6 + 2/4 =
  18. 18.2/3 − 3/12 =
  19. 19.10/12 − 1/3 =
  20. 20.1/3 + 6/7 =
  21. 21.6/9 + 2/8 =
  22. 22.4/5 − 4/8 =
  23. 23.6/9 + 3/8 =
  24. 24.6/9 − 2/12 =
  25. 25.1/8 + 1/12 =
  26. 26.1/3 + 2/3 =
  27. 27.7/9 − 2/3 =
  28. 28.3/8 − 1/8 =
  29. 29.1/2 − 2/7 =
  30. 30.2/3 + 7/12 =
  31. 31.1/3 − 1/4 =
  32. 32.1/4 + 9/11 =
  33. 33.1/7 + 1/12 =
  34. 34.2/4 + 5/9 =
  35. 35.2/4 − 2/7 =
  36. 36.3/4 + 3/7 =
  37. 37.2/3 + 2/3 =
  38. 38.4/5 + 2/3 =
  39. 39.3/4 − 5/8 =
  40. 40.7/12 − 2/10 =

Answer key

  1. 3/10
  2. 7/15
  3. 43/70
  4. 22/21
  5. 28/33
  6. 3/4
  7. 5/4
  8. 3/10
  9. 2/3
  10. 1
  11. 13/20
  12. 5/4
  13. 7/12
  14. 37/60
  15. 1/9
  16. 23/18
  17. 5/6
  18. 5/12
  19. 1/2
  20. 25/21
  21. 11/12
  22. 3/10
  23. 25/24
  24. 1/2
  25. 5/24
  26. 1
  27. 1/9
  28. 1/4
  29. 3/14
  30. 5/4
  31. 1/12
  32. 47/44
  33. 19/84
  34. 19/18
  35. 3/14
  36. 33/28
  37. 4/3
  38. 22/15
  39. 1/8
  40. 23/60

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