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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 640 · 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. 1.2/9 + 8/9 =
  2. 2.2/3 − 3/7 =
  3. 3.4/5 − 3/4 =
  4. 4.3/5 − 1/2 =
  5. 5.4/6 + 2/5 =
  6. 6.2/3 + 1/3 =
  7. 7.3/8 + 2/4 =
  8. 8.4/5 − 3/7 =
  9. 9.2/6 + 10/11 =
  10. 10.1/11 + 3/4 =
  11. 11.4/8 + 1/6 =
  12. 12.4/5 + 7/12 =
  13. 13.3/12 + 6/11 =
  14. 14.8/12 + 1/2 =
  15. 15.5/8 − 1/4 =
  16. 16.5/6 + 2/9 =
  17. 17.1/2 − 1/8 =
  18. 18.9/11 − 1/3 =
  19. 19.3/8 − 1/6 =
  20. 20.3/12 − 1/8 =
  21. 21.9/10 − 2/4 =
  22. 22.2/5 + 1/5 =
  23. 23.5/10 + 2/3 =
  24. 24.9/10 + 2/7 =
  25. 25.5/11 + 4/7 =
  26. 26.6/7 + 1/2 =
  27. 27.1/3 + 1/2 =
  28. 28.9/12 − 4/8 =
  29. 29.4/9 + 2/11 =
  30. 30.1/7 + 1/2 =
  31. 31.1/7 + 1/2 =
  32. 32.1/5 + 3/4 =
  33. 33.9/10 + 8/10 =
  34. 34.1/4 + 1/3 =
  35. 35.6/8 + 4/6 =
  36. 36.9/10 + 7/12 =
  37. 37.7/8 + 1/3 =
  38. 38.2/11 + 7/8 =
  39. 39.6/11 + 2/4 =
  40. 40.5/8 + 4/5 =

Answer key

  1. 10/9
  2. 5/21
  3. 1/20
  4. 1/10
  5. 16/15
  6. 1
  7. 7/8
  8. 13/35
  9. 41/33
  10. 37/44
  11. 2/3
  12. 83/60
  13. 35/44
  14. 7/6
  15. 3/8
  16. 19/18
  17. 3/8
  18. 16/33
  19. 5/24
  20. 1/8
  21. 2/5
  22. 3/5
  23. 7/6
  24. 83/70
  25. 79/77
  26. 19/14
  27. 5/6
  28. 1/4
  29. 62/99
  30. 9/14
  31. 9/14
  32. 19/20
  33. 17/10
  34. 7/12
  35. 17/12
  36. 89/60
  37. 29/24
  38. 93/88
  39. 23/22
  40. 57/40

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