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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 406 · 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. 1.2/3 − 2/10 =
  2. 2.6/10 + 8/12 =
  3. 3.4/7 − 2/6 =
  4. 4.7/11 − 3/9 =
  5. 5.2/4 − 1/6 =
  6. 6.1/3 + 6/9 =
  7. 7.9/12 − 1/2 =
  8. 8.1/4 + 4/12 =
  9. 9.5/6 − 1/2 =
  10. 10.11/12 − 3/4 =
  11. 11.1/5 + 7/11 =
  12. 12.2/6 − 2/9 =
  13. 13.2/9 + 1/12 =
  14. 14.6/10 − 5/9 =
  15. 15.7/11 − 3/10 =
  16. 16.8/11 − 2/5 =
  17. 17.8/12 + 1/3 =
  18. 18.2/6 + 2/3 =
  19. 19.4/9 − 1/11 =
  20. 20.2/4 + 3/6 =
  21. 21.1/8 + 8/11 =
  22. 22.2/10 + 4/10 =
  23. 23.2/4 + 1/2 =
  24. 24.1/3 + 3/7 =
  25. 25.2/3 − 5/10 =
  26. 26.2/10 + 1/8 =
  27. 27.7/9 − 4/11 =
  28. 28.1/9 + 1/2 =
  29. 29.3/4 − 1/3 =
  30. 30.4/10 + 1/6 =
  31. 31.9/11 − 4/10 =
  32. 32.5/6 − 1/5 =
  33. 33.3/4 + 3/4 =
  34. 34.9/11 − 3/5 =
  35. 35.6/7 − 3/4 =
  36. 36.8/9 + 4/7 =
  37. 37.3/5 − 1/3 =
  38. 38.3/4 + 3/7 =
  39. 39.2/3 + 4/11 =
  40. 40.4/9 − 1/12 =

Answer key

  1. 7/15
  2. 19/15
  3. 5/21
  4. 10/33
  5. 1/3
  6. 1
  7. 1/4
  8. 7/12
  9. 1/3
  10. 1/6
  11. 46/55
  12. 1/9
  13. 11/36
  14. 2/45
  15. 37/110
  16. 18/55
  17. 1
  18. 1
  19. 35/99
  20. 1
  21. 75/88
  22. 3/5
  23. 1
  24. 16/21
  25. 1/6
  26. 13/40
  27. 41/99
  28. 11/18
  29. 5/12
  30. 17/30
  31. 23/55
  32. 19/30
  33. 3/2
  34. 12/55
  35. 3/28
  36. 92/63
  37. 4/15
  38. 33/28
  39. 34/33
  40. 13/36

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