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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 550 · 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. 1.2/5 − 1/3 =
  2. 2.2/10 + 3/4 =
  3. 3.1/2 + 8/10 =
  4. 4.8/12 + 1/12 =
  5. 5.1/3 + 1/2 =
  6. 6.8/11 + 1/11 =
  7. 7.1/2 − 1/9 =
  8. 8.4/8 + 2/4 =
  9. 9.11/12 + 1/11 =
  10. 10.1/2 + 2/4 =
  11. 11.1/2 − 5/11 =
  12. 12.3/4 − 2/9 =
  13. 13.1/3 + 1/10 =
  14. 14.2/3 − 6/12 =
  15. 15.1/2 + 3/12 =
  16. 16.8/11 + 4/5 =
  17. 17.1/4 + 1/2 =
  18. 18.7/9 − 1/4 =
  19. 19.1/3 − 1/6 =
  20. 20.9/12 + 3/4 =
  21. 21.5/8 − 2/4 =
  22. 22.1/2 + 3/4 =
  23. 23.1/12 + 7/8 =
  24. 24.9/12 + 5/12 =
  25. 25.1/2 − 2/9 =
  26. 26.1/2 + 1/12 =
  27. 27.8/10 − 4/8 =
  28. 28.5/6 + 1/2 =
  29. 29.4/12 − 1/7 =
  30. 30.5/8 − 4/8 =
  31. 31.1/2 − 1/8 =
  32. 32.4/10 − 2/7 =
  33. 33.4/9 + 1/4 =
  34. 34.5/10 + 2/3 =
  35. 35.10/11 + 4/7 =
  36. 36.2/7 + 1/2 =
  37. 37.2/3 − 1/2 =
  38. 38.3/9 − 1/5 =
  39. 39.8/10 + 5/6 =
  40. 40.4/8 + 1/3 =

Answer key

  1. 1/15
  2. 19/20
  3. 13/10
  4. 3/4
  5. 5/6
  6. 9/11
  7. 7/18
  8. 1
  9. 133/132
  10. 1
  11. 1/22
  12. 19/36
  13. 13/30
  14. 1/6
  15. 3/4
  16. 84/55
  17. 3/4
  18. 19/36
  19. 1/6
  20. 3/2
  21. 1/8
  22. 5/4
  23. 23/24
  24. 7/6
  25. 5/18
  26. 7/12
  27. 3/10
  28. 4/3
  29. 4/21
  30. 1/8
  31. 3/8
  32. 4/35
  33. 25/36
  34. 7/6
  35. 114/77
  36. 11/14
  37. 1/6
  38. 2/15
  39. 49/30
  40. 5/6

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