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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 302 · 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. 1.2/6 − 1/8 =
  2. 2.3/9 − 2/12 =
  3. 3.7/12 + 1/12 =
  4. 4.6/12 − 4/9 =
  5. 5.9/10 − 4/6 =
  6. 6.4/6 − 1/6 =
  7. 7.2/3 − 4/10 =
  8. 8.4/5 − 1/2 =
  9. 9.4/7 + 1/7 =
  10. 10.3/9 + 7/9 =
  11. 11.1/11 + 2/3 =
  12. 12.3/7 + 2/9 =
  13. 13.1/10 + 4/5 =
  14. 14.2/8 + 2/5 =
  15. 15.3/8 − 1/11 =
  16. 16.2/7 − 1/10 =
  17. 17.2/3 + 1/10 =
  18. 18.8/9 + 2/8 =
  19. 19.6/9 + 3/5 =
  20. 20.3/4 − 3/9 =
  21. 21.1/4 + 3/11 =
  22. 22.1/2 − 5/12 =
  23. 23.1/3 + 4/10 =
  24. 24.4/5 + 1/11 =
  25. 25.1/2 − 1/3 =
  26. 26.1/2 − 1/5 =
  27. 27.2/10 + 2/4 =
  28. 28.1/11 + 1/2 =
  29. 29.4/6 + 1/2 =
  30. 30.1/2 − 1/5 =
  31. 31.5/6 + 1/2 =
  32. 32.2/11 + 3/7 =
  33. 33.1/2 + 11/12 =
  34. 34.6/11 − 2/6 =
  35. 35.1/2 + 4/5 =
  36. 36.1/2 + 5/10 =
  37. 37.7/8 + 8/11 =
  38. 38.1/9 + 1/2 =
  39. 39.3/12 + 2/4 =
  40. 40.1/4 + 5/7 =

Answer key

  1. 5/24
  2. 1/6
  3. 2/3
  4. 1/18
  5. 7/30
  6. 1/2
  7. 4/15
  8. 3/10
  9. 5/7
  10. 10/9
  11. 25/33
  12. 41/63
  13. 9/10
  14. 13/20
  15. 25/88
  16. 13/70
  17. 23/30
  18. 41/36
  19. 19/15
  20. 5/12
  21. 23/44
  22. 1/12
  23. 11/15
  24. 49/55
  25. 1/6
  26. 3/10
  27. 7/10
  28. 13/22
  29. 7/6
  30. 3/10
  31. 4/3
  32. 47/77
  33. 17/12
  34. 7/33
  35. 13/10
  36. 1
  37. 141/88
  38. 11/18
  39. 3/4
  40. 27/28

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