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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 907 · 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. 1.1/2 − 2/10 =
  2. 2.8/12 − 3/9 =
  3. 3.1/2 + 6/11 =
  4. 4.2/3 + 1/4 =
  5. 5.1/6 + 1/6 =
  6. 6.3/4 + 1/2 =
  7. 7.1/5 + 3/6 =
  8. 8.8/12 − 2/4 =
  9. 9.3/5 + 3/4 =
  10. 10.3/9 − 1/9 =
  11. 11.2/8 + 1/2 =
  12. 12.4/5 − 4/11 =
  13. 13.4/7 + 1/4 =
  14. 14.3/4 + 8/9 =
  15. 15.1/2 + 2/4 =
  16. 16.10/11 + 2/7 =
  17. 17.1/11 + 1/10 =
  18. 18.1/2 + 1/3 =
  19. 19.10/11 − 2/3 =
  20. 20.3/4 + 2/4 =
  21. 21.4/10 + 5/9 =
  22. 22.2/5 − 1/3 =
  23. 23.5/10 + 4/10 =
  24. 24.3/4 − 1/8 =
  25. 25.1/4 − 1/8 =
  26. 26.5/7 − 4/6 =
  27. 27.7/12 − 4/7 =
  28. 28.2/8 + 1/3 =
  29. 29.4/5 − 1/9 =
  30. 30.7/10 + 2/3 =
  31. 31.10/12 − 5/12 =
  32. 32.2/3 + 2/9 =
  33. 33.1/4 − 1/9 =
  34. 34.4/7 + 9/10 =
  35. 35.6/7 + 9/11 =
  36. 36.1/3 + 2/9 =
  37. 37.6/9 + 4/5 =
  38. 38.2/3 − 2/8 =
  39. 39.5/6 + 4/6 =
  40. 40.1/2 + 6/8 =

Answer key

  1. 3/10
  2. 1/3
  3. 23/22
  4. 11/12
  5. 1/3
  6. 5/4
  7. 7/10
  8. 1/6
  9. 27/20
  10. 2/9
  11. 3/4
  12. 24/55
  13. 23/28
  14. 59/36
  15. 1
  16. 92/77
  17. 21/110
  18. 5/6
  19. 8/33
  20. 5/4
  21. 43/45
  22. 1/15
  23. 9/10
  24. 5/8
  25. 1/8
  26. 1/21
  27. 1/84
  28. 7/12
  29. 31/45
  30. 41/30
  31. 5/12
  32. 8/9
  33. 5/36
  34. 103/70
  35. 129/77
  36. 5/9
  37. 22/15
  38. 5/12
  39. 3/2
  40. 5/4

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