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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 271 · 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. 1.1/2 + 3/7 =
  2. 2.1/6 + 1/10 =
  3. 3.5/12 + 1/2 =
  4. 4.3/6 + 2/4 =
  5. 5.1/5 + 5/10 =
  6. 6.1/2 + 2/9 =
  7. 7.8/12 + 1/4 =
  8. 8.6/8 + 3/5 =
  9. 9.2/10 + 1/3 =
  10. 10.1/3 + 1/4 =
  11. 11.2/11 + 3/5 =
  12. 12.5/7 + 2/11 =
  13. 13.6/7 − 4/12 =
  14. 14.5/6 + 1/3 =
  15. 15.2/4 + 2/3 =
  16. 16.9/11 − 7/12 =
  17. 17.2/12 + 1/3 =
  18. 18.1/2 + 3/4 =
  19. 19.2/3 − 2/4 =
  20. 20.6/8 − 7/11 =
  21. 21.4/8 − 1/11 =
  22. 22.5/9 + 1/2 =
  23. 23.1/3 + 8/10 =
  24. 24.1/2 − 2/8 =
  25. 25.4/5 − 4/12 =
  26. 26.1/5 − 1/8 =
  27. 27.9/11 − 3/9 =
  28. 28.1/2 − 3/8 =
  29. 29.1/2 + 2/3 =
  30. 30.6/7 + 9/10 =
  31. 31.4/11 + 2/5 =
  32. 32.2/6 + 3/4 =
  33. 33.3/12 + 8/9 =
  34. 34.4/7 + 6/7 =
  35. 35.11/12 − 5/6 =
  36. 36.9/10 + 6/8 =
  37. 37.1/2 − 1/5 =
  38. 38.2/9 + 1/3 =
  39. 39.2/6 − 1/4 =
  40. 40.5/8 + 2/3 =

Answer key

  1. 13/14
  2. 4/15
  3. 11/12
  4. 1
  5. 7/10
  6. 13/18
  7. 11/12
  8. 27/20
  9. 8/15
  10. 7/12
  11. 43/55
  12. 69/77
  13. 11/21
  14. 7/6
  15. 7/6
  16. 31/132
  17. 1/2
  18. 5/4
  19. 1/6
  20. 5/44
  21. 9/22
  22. 19/18
  23. 17/15
  24. 1/4
  25. 7/15
  26. 3/40
  27. 16/33
  28. 1/8
  29. 7/6
  30. 123/70
  31. 42/55
  32. 13/12
  33. 41/36
  34. 10/7
  35. 1/12
  36. 33/20
  37. 3/10
  38. 5/9
  39. 1/12
  40. 31/24

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