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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 616 · 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. 1.4/10 + 6/7 =
  2. 2.1/2 + 8/11 =
  3. 3.5/12 + 8/9 =
  4. 4.1/2 + 3/5 =
  5. 5.1/2 + 1/8 =
  6. 6.5/10 + 6/9 =
  7. 7.2/3 + 9/12 =
  8. 8.2/3 + 1/2 =
  9. 9.3/7 + 6/10 =
  10. 10.4/5 − 1/2 =
  11. 11.2/10 + 8/12 =
  12. 12.2/5 + 9/12 =
  13. 13.1/2 + 4/9 =
  14. 14.3/6 + 2/5 =
  15. 15.7/9 − 3/4 =
  16. 16.6/8 − 2/3 =
  17. 17.7/12 + 1/9 =
  18. 18.1/3 + 7/8 =
  19. 19.3/4 + 1/4 =
  20. 20.1/3 + 1/3 =
  21. 21.6/7 + 3/4 =
  22. 22.1/4 + 1/5 =
  23. 23.8/12 + 2/3 =
  24. 24.3/5 + 8/11 =
  25. 25.4/6 + 1/3 =
  26. 26.4/8 + 5/10 =
  27. 27.9/10 − 2/6 =
  28. 28.1/2 + 2/11 =
  29. 29.4/12 + 3/4 =
  30. 30.6/7 − 1/4 =
  31. 31.5/12 + 1/4 =
  32. 32.4/9 + 1/2 =
  33. 33.1/2 + 1/2 =
  34. 34.6/8 + 8/11 =
  35. 35.4/5 + 2/3 =
  36. 36.8/9 − 1/2 =
  37. 37.5/7 − 1/3 =
  38. 38.3/11 + 1/3 =
  39. 39.4/6 + 1/3 =
  40. 40.1/2 + 6/10 =

Answer key

  1. 44/35
  2. 27/22
  3. 47/36
  4. 11/10
  5. 5/8
  6. 7/6
  7. 17/12
  8. 7/6
  9. 36/35
  10. 3/10
  11. 13/15
  12. 23/20
  13. 17/18
  14. 9/10
  15. 1/36
  16. 1/12
  17. 25/36
  18. 29/24
  19. 1
  20. 2/3
  21. 45/28
  22. 9/20
  23. 4/3
  24. 73/55
  25. 1
  26. 1
  27. 17/30
  28. 15/22
  29. 13/12
  30. 17/28
  31. 2/3
  32. 17/18
  33. 1
  34. 65/44
  35. 22/15
  36. 7/18
  37. 8/21
  38. 20/33
  39. 1
  40. 11/10

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