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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 864 · 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. 1.2/3 − 1/2 =
  2. 2.3/4 + 1/2 =
  3. 3.1/2 + 4/7 =
  4. 4.5/6 − 3/7 =
  5. 5.10/12 − 4/8 =
  6. 6.5/7 − 2/10 =
  7. 7.2/4 + 6/7 =
  8. 8.1/2 + 2/9 =
  9. 9.9/10 − 8/11 =
  10. 10.4/7 + 3/5 =
  11. 11.6/8 − 1/3 =
  12. 12.3/5 + 7/12 =
  13. 13.5/10 − 2/11 =
  14. 14.1/4 + 9/11 =
  15. 15.1/2 + 10/12 =
  16. 16.1/5 + 1/10 =
  17. 17.7/10 − 1/5 =
  18. 18.4/5 − 5/10 =
  19. 19.3/8 + 1/2 =
  20. 20.1/2 + 3/11 =
  21. 21.1/12 + 1/9 =
  22. 22.2/7 + 1/2 =
  23. 23.7/11 + 1/2 =
  24. 24.4/8 − 2/5 =
  25. 25.1/4 + 2/3 =
  26. 26.4/6 + 6/8 =
  27. 27.9/11 − 2/5 =
  28. 28.5/8 − 7/12 =
  29. 29.6/9 − 1/3 =
  30. 30.10/11 + 2/7 =
  31. 31.1/3 − 1/4 =
  32. 32.2/3 + 7/9 =
  33. 33.6/7 + 1/5 =
  34. 34.2/3 − 4/12 =
  35. 35.1/9 + 6/11 =
  36. 36.2/5 + 10/12 =
  37. 37.4/10 − 3/12 =
  38. 38.3/4 + 1/5 =
  39. 39.9/11 − 1/2 =
  40. 40.3/6 − 4/10 =

Answer key

  1. 1/6
  2. 5/4
  3. 15/14
  4. 17/42
  5. 1/3
  6. 18/35
  7. 19/14
  8. 13/18
  9. 19/110
  10. 41/35
  11. 5/12
  12. 71/60
  13. 7/22
  14. 47/44
  15. 4/3
  16. 3/10
  17. 1/2
  18. 3/10
  19. 7/8
  20. 17/22
  21. 7/36
  22. 11/14
  23. 25/22
  24. 1/10
  25. 11/12
  26. 17/12
  27. 23/55
  28. 1/24
  29. 1/3
  30. 92/77
  31. 1/12
  32. 13/9
  33. 37/35
  34. 1/3
  35. 65/99
  36. 37/30
  37. 3/20
  38. 19/20
  39. 7/22
  40. 1/10

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