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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 240 · 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 + 3/4 =
  2. 2.1/2 + 1/9 =
  3. 3.7/8 − 4/5 =
  4. 4.1/5 + 4/7 =
  5. 5.1/3 − 2/11 =
  6. 6.1/4 + 1/6 =
  7. 7.2/3 + 3/4 =
  8. 8.2/3 + 1/5 =
  9. 9.9/10 + 2/5 =
  10. 10.4/9 − 1/7 =
  11. 11.2/8 + 2/12 =
  12. 12.1/11 + 1/2 =
  13. 13.2/7 − 2/12 =
  14. 14.7/8 − 6/11 =
  15. 15.1/3 + 4/11 =
  16. 16.5/9 + 1/2 =
  17. 17.1/8 + 8/10 =
  18. 18.5/11 + 5/6 =
  19. 19.10/12 − 6/10 =
  20. 20.1/2 + 1/4 =
  21. 21.11/12 + 1/3 =
  22. 22.2/12 + 7/10 =
  23. 23.1/3 + 2/11 =
  24. 24.6/12 + 2/3 =
  25. 25.6/8 + 1/8 =
  26. 26.8/10 − 1/2 =
  27. 27.5/6 + 6/11 =
  28. 28.2/5 + 4/9 =
  29. 29.1/7 + 3/9 =
  30. 30.3/4 + 1/2 =
  31. 31.4/6 + 4/8 =
  32. 32.5/7 − 4/8 =
  33. 33.1/3 + 1/2 =
  34. 34.9/10 − 1/5 =
  35. 35.5/7 − 1/3 =
  36. 36.1/2 − 1/5 =
  37. 37.2/3 + 2/8 =
  38. 38.1/10 + 1/3 =
  39. 39.5/7 − 2/11 =
  40. 40.7/11 + 1/6 =

Answer key

  1. 27/20
  2. 11/18
  3. 3/40
  4. 27/35
  5. 5/33
  6. 5/12
  7. 17/12
  8. 13/15
  9. 13/10
  10. 19/63
  11. 5/12
  12. 13/22
  13. 5/42
  14. 29/88
  15. 23/33
  16. 19/18
  17. 37/40
  18. 85/66
  19. 7/30
  20. 3/4
  21. 5/4
  22. 13/15
  23. 17/33
  24. 7/6
  25. 7/8
  26. 3/10
  27. 91/66
  28. 38/45
  29. 10/21
  30. 5/4
  31. 7/6
  32. 3/14
  33. 5/6
  34. 7/10
  35. 8/21
  36. 3/10
  37. 11/12
  38. 13/30
  39. 41/77
  40. 53/66

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