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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 917 · 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. 1.4/6 − 1/2 =
  2. 2.9/10 − 1/2 =
  3. 3.2/5 + 1/8 =
  4. 4.3/4 − 3/7 =
  5. 5.7/8 − 1/4 =
  6. 6.5/11 + 2/3 =
  7. 7.1/2 + 2/3 =
  8. 8.4/6 + 2/4 =
  9. 9.5/7 + 9/12 =
  10. 10.1/2 − 1/11 =
  11. 11.3/10 + 1/5 =
  12. 12.5/8 − 1/4 =
  13. 13.11/12 + 2/3 =
  14. 14.1/2 + 1/2 =
  15. 15.1/8 + 2/3 =
  16. 16.7/11 + 5/9 =
  17. 17.1/2 + 7/8 =
  18. 18.1/8 + 6/9 =
  19. 19.4/8 + 4/5 =
  20. 20.6/12 + 3/6 =
  21. 21.2/4 + 4/6 =
  22. 22.4/9 + 2/5 =
  23. 23.1/2 − 5/12 =
  24. 24.2/9 + 3/12 =
  25. 25.1/2 + 9/11 =
  26. 26.3/5 + 1/4 =
  27. 27.4/6 + 1/12 =
  28. 28.1/3 + 1/3 =
  29. 29.2/6 + 1/2 =
  30. 30.3/4 − 1/3 =
  31. 31.3/5 + 6/8 =
  32. 32.8/12 + 6/9 =
  33. 33.7/8 + 1/11 =
  34. 34.1/8 + 1/3 =
  35. 35.8/11 − 2/5 =
  36. 36.2/4 + 2/5 =
  37. 37.5/12 + 7/12 =
  38. 38.2/5 + 2/3 =
  39. 39.4/6 + 2/7 =
  40. 40.5/7 + 2/4 =

Answer key

  1. 1/6
  2. 2/5
  3. 21/40
  4. 9/28
  5. 5/8
  6. 37/33
  7. 7/6
  8. 7/6
  9. 41/28
  10. 9/22
  11. 1/2
  12. 3/8
  13. 19/12
  14. 1
  15. 19/24
  16. 118/99
  17. 11/8
  18. 19/24
  19. 13/10
  20. 1
  21. 7/6
  22. 38/45
  23. 1/12
  24. 17/36
  25. 29/22
  26. 17/20
  27. 3/4
  28. 2/3
  29. 5/6
  30. 5/12
  31. 27/20
  32. 4/3
  33. 85/88
  34. 11/24
  35. 18/55
  36. 9/10
  37. 1
  38. 16/15
  39. 20/21
  40. 17/14

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