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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 390 · 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. 1.2/4 + 4/10 =
  2. 2.8/10 + 3/5 =
  3. 3.1/2 + 1/7 =
  4. 4.3/5 − 3/12 =
  5. 5.2/3 − 3/12 =
  6. 6.4/10 − 1/7 =
  7. 7.5/9 − 1/10 =
  8. 8.7/8 − 2/6 =
  9. 9.8/10 + 2/3 =
  10. 10.2/8 + 6/10 =
  11. 11.1/2 + 1/6 =
  12. 12.1/2 − 1/3 =
  13. 13.8/9 − 2/3 =
  14. 14.5/10 + 1/3 =
  15. 15.3/4 − 3/11 =
  16. 16.6/9 − 2/12 =
  17. 17.5/6 − 1/4 =
  18. 18.6/7 − 4/9 =
  19. 19.10/12 + 1/7 =
  20. 20.3/10 + 9/12 =
  21. 21.1/5 − 1/8 =
  22. 22.8/12 + 5/12 =
  23. 23.1/4 + 2/3 =
  24. 24.1/6 + 1/3 =
  25. 25.3/12 + 1/12 =
  26. 26.2/4 + 1/2 =
  27. 27.4/6 − 1/2 =
  28. 28.1/2 + 5/11 =
  29. 29.2/4 + 2/12 =
  30. 30.9/11 + 1/2 =
  31. 31.2/4 + 3/12 =
  32. 32.2/6 + 6/12 =
  33. 33.1/9 + 2/9 =
  34. 34.2/3 − 1/2 =
  35. 35.4/8 + 6/7 =
  36. 36.1/7 + 3/4 =
  37. 37.1/2 + 2/10 =
  38. 38.5/8 − 1/4 =
  39. 39.10/11 − 1/3 =
  40. 40.5/7 + 1/2 =

Answer key

  1. 9/10
  2. 7/5
  3. 9/14
  4. 7/20
  5. 5/12
  6. 9/35
  7. 41/90
  8. 13/24
  9. 22/15
  10. 17/20
  11. 2/3
  12. 1/6
  13. 2/9
  14. 5/6
  15. 21/44
  16. 1/2
  17. 7/12
  18. 26/63
  19. 41/42
  20. 21/20
  21. 3/40
  22. 13/12
  23. 11/12
  24. 1/2
  25. 1/3
  26. 1
  27. 1/6
  28. 21/22
  29. 2/3
  30. 29/22
  31. 3/4
  32. 5/6
  33. 1/3
  34. 1/6
  35. 19/14
  36. 25/28
  37. 7/10
  38. 3/8
  39. 19/33
  40. 17/14

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