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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 673 · 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. 1.1/5 + 1/4 =
  2. 2.4/10 + 8/11 =
  3. 3.1/2 + 5/10 =
  4. 4.3/11 + 1/11 =
  5. 5.2/12 + 5/8 =
  6. 6.3/5 + 2/12 =
  7. 7.1/4 + 2/8 =
  8. 8.7/9 + 4/5 =
  9. 9.2/12 + 2/4 =
  10. 10.2/10 + 1/10 =
  11. 11.2/4 + 6/9 =
  12. 12.1/5 + 2/9 =
  13. 13.1/12 + 3/12 =
  14. 14.6/8 − 3/12 =
  15. 15.5/6 − 4/9 =
  16. 16.5/6 + 3/7 =
  17. 17.7/8 + 6/11 =
  18. 18.4/9 − 1/6 =
  19. 19.9/10 − 5/9 =
  20. 20.1/8 + 8/9 =
  21. 21.2/9 − 1/12 =
  22. 22.4/5 + 1/2 =
  23. 23.3/8 + 2/8 =
  24. 24.9/12 + 1/6 =
  25. 25.6/9 − 2/11 =
  26. 26.3/4 + 9/11 =
  27. 27.1/10 + 1/2 =
  28. 28.9/12 + 2/10 =
  29. 29.1/5 − 1/7 =
  30. 30.5/7 + 4/11 =
  31. 31.4/12 + 4/5 =
  32. 32.2/10 − 1/7 =
  33. 33.4/12 − 2/8 =
  34. 34.1/3 + 2/6 =
  35. 35.6/7 + 1/4 =
  36. 36.1/2 + 4/6 =
  37. 37.3/6 + 1/7 =
  38. 38.4/9 − 2/8 =
  39. 39.1/5 + 1/4 =
  40. 40.1/5 + 1/6 =

Answer key

  1. 9/20
  2. 62/55
  3. 1
  4. 4/11
  5. 19/24
  6. 23/30
  7. 1/2
  8. 71/45
  9. 2/3
  10. 3/10
  11. 7/6
  12. 19/45
  13. 1/3
  14. 1/2
  15. 7/18
  16. 53/42
  17. 125/88
  18. 5/18
  19. 31/90
  20. 73/72
  21. 5/36
  22. 13/10
  23. 5/8
  24. 11/12
  25. 16/33
  26. 69/44
  27. 3/5
  28. 19/20
  29. 2/35
  30. 83/77
  31. 17/15
  32. 2/35
  33. 1/12
  34. 2/3
  35. 31/28
  36. 7/6
  37. 9/14
  38. 7/36
  39. 9/20
  40. 11/30

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