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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 439 · 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. 1.3/5 − 1/2 =
  2. 2.10/12 − 1/12 =
  3. 3.4/7 + 2/9 =
  4. 4.6/7 − 1/4 =
  5. 5.4/5 + 1/7 =
  6. 6.1/2 − 1/3 =
  7. 7.5/10 + 1/3 =
  8. 8.9/10 + 5/10 =
  9. 9.3/4 − 7/10 =
  10. 10.1/2 − 2/8 =
  11. 11.2/7 + 1/2 =
  12. 12.7/12 − 1/3 =
  13. 13.7/10 + 9/10 =
  14. 14.1/2 − 2/8 =
  15. 15.1/8 + 1/3 =
  16. 16.6/7 − 5/6 =
  17. 17.2/3 − 1/3 =
  18. 18.1/11 + 6/11 =
  19. 19.1/3 + 3/12 =
  20. 20.2/3 + 4/10 =
  21. 21.9/12 − 1/7 =
  22. 22.1/12 + 1/4 =
  23. 23.2/4 − 2/12 =
  24. 24.6/7 + 1/2 =
  25. 25.1/7 + 5/10 =
  26. 26.1/3 + 2/3 =
  27. 27.4/5 + 5/10 =
  28. 28.3/4 − 1/2 =
  29. 29.1/3 − 2/11 =
  30. 30.8/10 + 1/5 =
  31. 31.3/10 + 4/9 =
  32. 32.3/11 + 6/12 =
  33. 33.1/2 + 1/3 =
  34. 34.5/12 − 3/10 =
  35. 35.8/9 − 1/4 =
  36. 36.4/11 + 3/4 =
  37. 37.1/2 + 1/11 =
  38. 38.1/4 + 5/8 =
  39. 39.11/12 + 5/12 =
  40. 40.1/2 + 1/3 =

Answer key

  1. 1/10
  2. 3/4
  3. 50/63
  4. 17/28
  5. 33/35
  6. 1/6
  7. 5/6
  8. 7/5
  9. 1/20
  10. 1/4
  11. 11/14
  12. 1/4
  13. 8/5
  14. 1/4
  15. 11/24
  16. 1/42
  17. 1/3
  18. 7/11
  19. 7/12
  20. 16/15
  21. 17/28
  22. 1/3
  23. 1/3
  24. 19/14
  25. 9/14
  26. 1
  27. 13/10
  28. 1/4
  29. 5/33
  30. 1
  31. 67/90
  32. 17/22
  33. 5/6
  34. 7/60
  35. 23/36
  36. 49/44
  37. 13/22
  38. 7/8
  39. 4/3
  40. 5/6

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