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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 91 · 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. 1.4/9 − 1/4 =
  2. 2.1/4 + 1/3 =
  3. 3.7/10 + 8/11 =
  4. 4.2/8 + 2/7 =
  5. 5.7/8 − 6/12 =
  6. 6.2/4 − 1/6 =
  7. 7.7/10 − 1/3 =
  8. 8.1/2 + 8/11 =
  9. 9.4/8 − 1/3 =
  10. 10.6/9 − 1/2 =
  11. 11.9/12 + 3/5 =
  12. 12.1/6 + 1/12 =
  13. 13.2/3 + 3/10 =
  14. 14.10/12 + 1/2 =
  15. 15.11/12 − 2/4 =
  16. 16.1/3 + 2/9 =
  17. 17.5/9 − 1/5 =
  18. 18.4/8 + 7/8 =
  19. 19.1/2 + 3/7 =
  20. 20.5/7 + 1/7 =
  21. 21.1/3 + 2/3 =
  22. 22.1/2 + 1/5 =
  23. 23.1/11 + 1/7 =
  24. 24.2/4 + 1/8 =
  25. 25.2/11 + 5/11 =
  26. 26.2/3 − 1/7 =
  27. 27.8/12 + 8/10 =
  28. 28.3/9 + 4/6 =
  29. 29.2/4 + 7/8 =
  30. 30.5/12 − 3/12 =
  31. 31.2/7 − 1/7 =
  32. 32.2/5 + 5/7 =
  33. 33.2/8 + 6/8 =
  34. 34.2/6 + 2/11 =
  35. 35.2/7 + 5/7 =
  36. 36.2/3 + 2/4 =
  37. 37.2/3 − 6/10 =
  38. 38.1/2 − 1/4 =
  39. 39.2/7 + 5/6 =
  40. 40.1/2 − 1/4 =

Answer key

  1. 7/36
  2. 7/12
  3. 157/110
  4. 15/28
  5. 3/8
  6. 1/3
  7. 11/30
  8. 27/22
  9. 1/6
  10. 1/6
  11. 27/20
  12. 1/4
  13. 29/30
  14. 4/3
  15. 5/12
  16. 5/9
  17. 16/45
  18. 11/8
  19. 13/14
  20. 6/7
  21. 1
  22. 7/10
  23. 18/77
  24. 5/8
  25. 7/11
  26. 11/21
  27. 22/15
  28. 1
  29. 11/8
  30. 1/6
  31. 1/7
  32. 39/35
  33. 1
  34. 17/33
  35. 1
  36. 7/6
  37. 1/15
  38. 1/4
  39. 47/42
  40. 1/4

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