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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 718 · 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. 1.6/10 − 7/12 =
  2. 2.4/7 + 1/3 =
  3. 3.1/2 + 4/8 =
  4. 4.2/12 + 4/12 =
  5. 5.7/8 − 1/12 =
  6. 6.3/4 − 1/7 =
  7. 7.2/4 − 1/3 =
  8. 8.4/6 − 3/6 =
  9. 9.1/2 + 1/2 =
  10. 10.8/9 + 1/2 =
  11. 11.2/3 + 1/8 =
  12. 12.3/5 + 2/3 =
  13. 13.5/6 + 3/10 =
  14. 14.7/11 − 1/4 =
  15. 15.4/11 + 2/8 =
  16. 16.1/2 − 2/7 =
  17. 17.1/2 + 1/4 =
  18. 18.1/2 + 1/5 =
  19. 19.3/5 + 2/3 =
  20. 20.2/5 + 1/2 =
  21. 21.6/11 − 2/4 =
  22. 22.3/11 + 4/7 =
  23. 23.1/2 + 1/5 =
  24. 24.4/6 + 10/12 =
  25. 25.7/9 + 4/8 =
  26. 26.10/12 + 3/4 =
  27. 27.9/10 + 1/3 =
  28. 28.1/2 + 6/10 =
  29. 29.5/10 − 1/9 =
  30. 30.7/10 + 1/8 =
  31. 31.3/5 + 5/12 =
  32. 32.11/12 − 4/10 =
  33. 33.2/3 − 1/4 =
  34. 34.1/3 + 3/4 =
  35. 35.7/11 − 1/3 =
  36. 36.2/12 + 1/3 =
  37. 37.2/12 + 4/5 =
  38. 38.3/5 + 2/3 =
  39. 39.2/4 − 1/12 =
  40. 40.5/7 + 3/4 =

Answer key

  1. 1/60
  2. 19/21
  3. 1
  4. 1/2
  5. 19/24
  6. 17/28
  7. 1/6
  8. 1/6
  9. 1
  10. 25/18
  11. 19/24
  12. 19/15
  13. 17/15
  14. 17/44
  15. 27/44
  16. 3/14
  17. 3/4
  18. 7/10
  19. 19/15
  20. 9/10
  21. 1/22
  22. 65/77
  23. 7/10
  24. 3/2
  25. 23/18
  26. 19/12
  27. 37/30
  28. 11/10
  29. 7/18
  30. 33/40
  31. 61/60
  32. 31/60
  33. 5/12
  34. 13/12
  35. 10/33
  36. 1/2
  37. 29/30
  38. 19/15
  39. 5/12
  40. 41/28

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