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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 69 · 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. 1.1/4 + 1/3 =
  2. 2.1/2 + 1/2 =
  3. 3.2/5 + 6/7 =
  4. 4.3/10 − 3/12 =
  5. 5.5/7 − 2/8 =
  6. 6.1/2 + 5/11 =
  7. 7.7/11 − 2/5 =
  8. 8.1/7 + 1/2 =
  9. 9.6/9 + 2/3 =
  10. 10.1/2 + 1/2 =
  11. 11.2/11 + 1/3 =
  12. 12.4/6 − 2/5 =
  13. 13.1/2 + 1/2 =
  14. 14.1/4 + 1/2 =
  15. 15.6/12 + 4/7 =
  16. 16.2/3 + 5/12 =
  17. 17.4/9 − 2/9 =
  18. 18.5/6 − 2/3 =
  19. 19.2/7 + 2/6 =
  20. 20.8/9 + 2/11 =
  21. 21.1/2 − 2/8 =
  22. 22.5/6 − 4/9 =
  23. 23.2/4 + 2/4 =
  24. 24.1/6 + 5/6 =
  25. 25.7/9 + 3/4 =
  26. 26.6/7 − 1/2 =
  27. 27.3/4 − 1/4 =
  28. 28.2/7 + 3/9 =
  29. 29.1/3 − 2/8 =
  30. 30.3/9 − 1/4 =
  31. 31.10/11 − 4/8 =
  32. 32.10/11 − 2/4 =
  33. 33.2/7 + 10/11 =
  34. 34.1/7 − 1/11 =
  35. 35.6/10 − 1/12 =
  36. 36.11/12 + 1/6 =
  37. 37.1/8 + 2/6 =
  38. 38.3/7 + 2/3 =
  39. 39.3/4 − 1/4 =
  40. 40.9/12 + 1/5 =

Answer key

  1. 7/12
  2. 1
  3. 44/35
  4. 1/20
  5. 13/28
  6. 21/22
  7. 13/55
  8. 9/14
  9. 4/3
  10. 1
  11. 17/33
  12. 4/15
  13. 1
  14. 3/4
  15. 15/14
  16. 13/12
  17. 2/9
  18. 1/6
  19. 13/21
  20. 106/99
  21. 1/4
  22. 7/18
  23. 1
  24. 1
  25. 55/36
  26. 5/14
  27. 1/2
  28. 13/21
  29. 1/12
  30. 1/12
  31. 9/22
  32. 9/22
  33. 92/77
  34. 4/77
  35. 31/60
  36. 13/12
  37. 11/24
  38. 23/21
  39. 1/2
  40. 19/20

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