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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 934 · 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. 1.1/3 − 2/7 =
  2. 2.1/3 + 1/2 =
  3. 3.9/12 + 1/6 =
  4. 4.3/5 + 3/7 =
  5. 5.1/2 − 1/10 =
  6. 6.1/2 + 1/4 =
  7. 7.6/9 − 1/3 =
  8. 8.2/7 + 1/11 =
  9. 9.6/7 + 1/4 =
  10. 10.1/3 + 1/5 =
  11. 11.6/8 − 1/2 =
  12. 12.3/5 + 2/6 =
  13. 13.1/4 − 2/9 =
  14. 14.2/3 + 1/5 =
  15. 15.6/10 + 5/6 =
  16. 16.1/2 + 4/11 =
  17. 17.2/3 − 6/12 =
  18. 18.7/10 − 2/10 =
  19. 19.5/7 + 5/7 =
  20. 20.5/10 + 1/7 =
  21. 21.4/8 + 1/3 =
  22. 22.1/12 + 2/9 =
  23. 23.5/12 + 1/3 =
  24. 24.1/2 − 4/10 =
  25. 25.9/10 − 7/12 =
  26. 26.5/6 − 5/10 =
  27. 27.1/8 + 1/2 =
  28. 28.2/11 + 1/5 =
  29. 29.1/4 + 3/4 =
  30. 30.2/10 − 1/6 =
  31. 31.1/2 + 8/9 =
  32. 32.1/7 + 3/5 =
  33. 33.2/8 + 1/8 =
  34. 34.1/4 − 1/5 =
  35. 35.3/4 + 3/5 =
  36. 36.4/6 − 3/5 =
  37. 37.1/4 + 3/8 =
  38. 38.1/9 + 4/6 =
  39. 39.2/5 + 7/12 =
  40. 40.7/10 − 1/2 =

Answer key

  1. 1/21
  2. 5/6
  3. 11/12
  4. 36/35
  5. 2/5
  6. 3/4
  7. 1/3
  8. 29/77
  9. 31/28
  10. 8/15
  11. 1/4
  12. 14/15
  13. 1/36
  14. 13/15
  15. 43/30
  16. 19/22
  17. 1/6
  18. 1/2
  19. 10/7
  20. 9/14
  21. 5/6
  22. 11/36
  23. 3/4
  24. 1/10
  25. 19/60
  26. 1/3
  27. 5/8
  28. 21/55
  29. 1
  30. 1/30
  31. 25/18
  32. 26/35
  33. 3/8
  34. 1/20
  35. 27/20
  36. 1/15
  37. 5/8
  38. 7/9
  39. 59/60
  40. 1/5

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