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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 799 · 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. 1.3/4 − 1/3 =
  2. 2.3/5 + 1/5 =
  3. 3.10/12 + 1/2 =
  4. 4.4/7 − 1/4 =
  5. 5.1/2 + 1/3 =
  6. 6.1/2 + 2/3 =
  7. 7.4/7 + 1/7 =
  8. 8.9/11 − 1/6 =
  9. 9.5/9 + 3/4 =
  10. 10.4/9 − 2/8 =
  11. 11.3/10 + 3/8 =
  12. 12.4/9 − 1/4 =
  13. 13.1/8 + 2/4 =
  14. 14.6/7 + 3/5 =
  15. 15.1/3 + 2/4 =
  16. 16.10/12 + 5/6 =
  17. 17.1/10 + 2/6 =
  18. 18.8/9 − 5/8 =
  19. 19.1/3 + 2/9 =
  20. 20.3/5 + 3/11 =
  21. 21.4/11 + 2/3 =
  22. 22.1/4 + 9/10 =
  23. 23.6/7 + 3/4 =
  24. 24.6/7 + 4/8 =
  25. 25.7/10 + 4/8 =
  26. 26.6/7 + 1/2 =
  27. 27.1/3 − 1/5 =
  28. 28.5/10 + 4/11 =
  29. 29.7/10 + 1/4 =
  30. 30.4/8 − 1/3 =
  31. 31.10/11 − 8/12 =
  32. 32.4/11 − 2/12 =
  33. 33.7/10 + 4/5 =
  34. 34.2/3 − 6/10 =
  35. 35.6/9 + 2/7 =
  36. 36.3/5 − 1/2 =
  37. 37.1/2 + 1/11 =
  38. 38.4/10 − 2/8 =
  39. 39.9/10 + 1/5 =
  40. 40.8/9 − 6/10 =

Answer key

  1. 5/12
  2. 4/5
  3. 4/3
  4. 9/28
  5. 5/6
  6. 7/6
  7. 5/7
  8. 43/66
  9. 47/36
  10. 7/36
  11. 27/40
  12. 7/36
  13. 5/8
  14. 51/35
  15. 5/6
  16. 5/3
  17. 13/30
  18. 19/72
  19. 5/9
  20. 48/55
  21. 34/33
  22. 23/20
  23. 45/28
  24. 19/14
  25. 6/5
  26. 19/14
  27. 2/15
  28. 19/22
  29. 19/20
  30. 1/6
  31. 8/33
  32. 13/66
  33. 3/2
  34. 1/15
  35. 20/21
  36. 1/10
  37. 13/22
  38. 3/20
  39. 11/10
  40. 13/45

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