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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 163 · 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. 1.6/7 + 8/11 =
  2. 2.9/11 + 4/6 =
  3. 3.1/12 + 1/2 =
  4. 4.4/5 + 4/5 =
  5. 5.1/2 + 5/7 =
  6. 6.4/5 + 3/4 =
  7. 7.1/2 + 3/6 =
  8. 8.1/3 + 1/3 =
  9. 9.1/7 + 4/7 =
  10. 10.2/6 + 1/4 =
  11. 11.7/11 + 1/2 =
  12. 12.6/8 − 1/7 =
  13. 13.9/11 − 5/9 =
  14. 14.6/9 + 5/8 =
  15. 15.2/5 + 3/7 =
  16. 16.1/5 + 2/9 =
  17. 17.2/12 + 1/4 =
  18. 18.1/7 + 1/2 =
  19. 19.10/11 + 7/11 =
  20. 20.4/5 − 3/6 =
  21. 21.1/3 + 5/8 =
  22. 22.6/12 + 7/10 =
  23. 23.1/3 + 1/4 =
  24. 24.4/7 − 1/2 =
  25. 25.1/6 − 1/11 =
  26. 26.3/12 + 1/4 =
  27. 27.1/3 + 7/10 =
  28. 28.1/2 − 3/11 =
  29. 29.2/5 + 3/4 =
  30. 30.1/4 + 2/6 =
  31. 31.1/6 + 5/9 =
  32. 32.4/11 + 4/9 =
  33. 33.5/10 + 2/8 =
  34. 34.1/2 + 1/5 =
  35. 35.1/2 − 4/11 =
  36. 36.1/7 − 1/11 =
  37. 37.2/9 + 1/2 =
  38. 38.3/4 + 2/7 =
  39. 39.3/4 − 7/11 =
  40. 40.2/4 + 1/7 =

Answer key

  1. 122/77
  2. 49/33
  3. 7/12
  4. 8/5
  5. 17/14
  6. 31/20
  7. 1
  8. 2/3
  9. 5/7
  10. 7/12
  11. 25/22
  12. 17/28
  13. 26/99
  14. 31/24
  15. 29/35
  16. 19/45
  17. 5/12
  18. 9/14
  19. 17/11
  20. 3/10
  21. 23/24
  22. 6/5
  23. 7/12
  24. 1/14
  25. 5/66
  26. 1/2
  27. 31/30
  28. 5/22
  29. 23/20
  30. 7/12
  31. 13/18
  32. 80/99
  33. 3/4
  34. 7/10
  35. 3/22
  36. 4/77
  37. 13/18
  38. 29/28
  39. 5/44
  40. 9/14

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