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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 314 · 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. 1.2/5 − 1/7 =
  2. 2.2/3 − 3/5 =
  3. 3.8/11 − 1/4 =
  4. 4.5/6 + 3/4 =
  5. 5.2/7 + 4/6 =
  6. 6.6/10 + 9/10 =
  7. 7.3/4 − 3/7 =
  8. 8.4/10 − 1/9 =
  9. 9.9/12 + 1/4 =
  10. 10.1/5 + 1/5 =
  11. 11.3/5 − 1/4 =
  12. 12.1/2 + 1/2 =
  13. 13.8/9 + 1/3 =
  14. 14.11/12 + 3/12 =
  15. 15.1/2 + 2/7 =
  16. 16.1/10 + 2/8 =
  17. 17.3/12 + 1/5 =
  18. 18.3/5 + 1/3 =
  19. 19.3/4 + 3/5 =
  20. 20.2/6 + 4/5 =
  21. 21.2/8 + 4/8 =
  22. 22.7/10 + 3/7 =
  23. 23.4/5 + 1/2 =
  24. 24.2/6 − 2/7 =
  25. 25.2/3 + 1/3 =
  26. 26.2/7 + 6/11 =
  27. 27.1/11 + 1/8 =
  28. 28.2/3 − 5/10 =
  29. 29.2/10 + 2/10 =
  30. 30.6/12 + 2/9 =
  31. 31.2/4 + 1/2 =
  32. 32.3/11 + 1/3 =
  33. 33.8/9 − 4/8 =
  34. 34.4/7 − 2/8 =
  35. 35.1/3 + 2/4 =
  36. 36.3/4 + 2/3 =
  37. 37.2/5 + 3/5 =
  38. 38.11/12 − 2/7 =
  39. 39.3/6 + 3/10 =
  40. 40.3/11 + 2/4 =

Answer key

  1. 9/35
  2. 1/15
  3. 21/44
  4. 19/12
  5. 20/21
  6. 3/2
  7. 9/28
  8. 13/45
  9. 1
  10. 2/5
  11. 7/20
  12. 1
  13. 11/9
  14. 7/6
  15. 11/14
  16. 7/20
  17. 9/20
  18. 14/15
  19. 27/20
  20. 17/15
  21. 3/4
  22. 79/70
  23. 13/10
  24. 1/21
  25. 1
  26. 64/77
  27. 19/88
  28. 1/6
  29. 2/5
  30. 13/18
  31. 1
  32. 20/33
  33. 7/18
  34. 9/28
  35. 5/6
  36. 17/12
  37. 1
  38. 53/84
  39. 4/5
  40. 17/22

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