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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 868 · 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. 1.5/9 + 9/10 =
  2. 2.3/4 + 5/10 =
  3. 3.1/3 + 1/3 =
  4. 4.3/5 + 3/8 =
  5. 5.2/3 + 1/8 =
  6. 6.2/5 − 1/12 =
  7. 7.1/2 + 1/2 =
  8. 8.1/3 + 1/2 =
  9. 9.1/3 + 2/7 =
  10. 10.1/3 − 1/5 =
  11. 11.1/11 + 3/9 =
  12. 12.1/2 + 11/12 =
  13. 13.1/3 + 4/10 =
  14. 14.1/3 + 1/10 =
  15. 15.3/4 + 1/4 =
  16. 16.5/10 − 2/11 =
  17. 17.8/9 − 2/12 =
  18. 18.5/9 − 3/12 =
  19. 19.5/8 + 9/12 =
  20. 20.2/3 + 6/12 =
  21. 21.1/4 − 1/10 =
  22. 22.8/9 + 3/11 =
  23. 23.2/4 + 8/9 =
  24. 24.6/7 − 5/9 =
  25. 25.6/10 + 2/4 =
  26. 26.5/6 + 5/7 =
  27. 27.9/11 − 1/3 =
  28. 28.7/11 + 1/5 =
  29. 29.1/9 + 2/3 =
  30. 30.3/4 − 4/7 =
  31. 31.5/6 + 3/4 =
  32. 32.7/10 − 2/7 =
  33. 33.2/5 + 7/11 =
  34. 34.10/12 − 1/8 =
  35. 35.8/9 + 2/4 =
  36. 36.3/8 + 1/3 =
  37. 37.7/9 − 3/8 =
  38. 38.6/8 − 2/4 =
  39. 39.5/8 + 1/4 =
  40. 40.1/7 + 1/3 =

Answer key

  1. 131/90
  2. 5/4
  3. 2/3
  4. 39/40
  5. 19/24
  6. 19/60
  7. 1
  8. 5/6
  9. 13/21
  10. 2/15
  11. 14/33
  12. 17/12
  13. 11/15
  14. 13/30
  15. 1
  16. 7/22
  17. 13/18
  18. 11/36
  19. 11/8
  20. 7/6
  21. 3/20
  22. 115/99
  23. 25/18
  24. 19/63
  25. 11/10
  26. 65/42
  27. 16/33
  28. 46/55
  29. 7/9
  30. 5/28
  31. 19/12
  32. 29/70
  33. 57/55
  34. 17/24
  35. 25/18
  36. 17/24
  37. 29/72
  38. 1/4
  39. 7/8
  40. 10/21

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