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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 884 · 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. 1.11/12 − 4/7 =
  2. 2.1/3 + 4/12 =
  3. 3.5/7 + 6/7 =
  4. 4.1/2 + 2/6 =
  5. 5.1/3 + 2/6 =
  6. 6.4/6 + 4/7 =
  7. 7.3/11 + 4/5 =
  8. 8.1/10 + 3/7 =
  9. 9.2/7 + 2/11 =
  10. 10.4/5 − 3/4 =
  11. 11.3/7 + 3/7 =
  12. 12.1/2 − 3/7 =
  13. 13.1/2 + 2/5 =
  14. 14.1/7 + 1/5 =
  15. 15.1/6 + 2/4 =
  16. 16.4/7 + 1/2 =
  17. 17.8/9 + 1/4 =
  18. 18.7/8 − 6/7 =
  19. 19.3/4 − 2/5 =
  20. 20.1/2 + 1/3 =
  21. 21.9/11 − 6/9 =
  22. 22.2/7 + 2/5 =
  23. 23.2/10 + 2/6 =
  24. 24.1/2 − 3/7 =
  25. 25.2/3 − 2/7 =
  26. 26.6/9 − 5/9 =
  27. 27.2/6 − 2/7 =
  28. 28.1/3 + 4/11 =
  29. 29.4/10 + 3/7 =
  30. 30.2/4 + 5/7 =
  31. 31.3/7 − 2/10 =
  32. 32.2/4 − 1/5 =
  33. 33.2/4 − 1/3 =
  34. 34.2/3 + 2/12 =
  35. 35.1/5 + 1/12 =
  36. 36.1/3 + 2/5 =
  37. 37.8/10 − 4/6 =
  38. 38.7/8 + 1/2 =
  39. 39.4/8 + 5/11 =
  40. 40.2/4 + 7/8 =

Answer key

  1. 29/84
  2. 2/3
  3. 11/7
  4. 5/6
  5. 2/3
  6. 26/21
  7. 59/55
  8. 37/70
  9. 36/77
  10. 1/20
  11. 6/7
  12. 1/14
  13. 9/10
  14. 12/35
  15. 2/3
  16. 15/14
  17. 41/36
  18. 1/56
  19. 7/20
  20. 5/6
  21. 5/33
  22. 24/35
  23. 8/15
  24. 1/14
  25. 8/21
  26. 1/9
  27. 1/21
  28. 23/33
  29. 29/35
  30. 17/14
  31. 8/35
  32. 3/10
  33. 1/6
  34. 5/6
  35. 17/60
  36. 11/15
  37. 2/15
  38. 11/8
  39. 21/22
  40. 11/8

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