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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 178 · 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 − 1/9 =
  2. 2.3/6 + 3/8 =
  3. 3.5/11 + 5/9 =
  4. 4.2/6 + 1/3 =
  5. 5.8/9 − 3/5 =
  6. 6.2/7 + 2/3 =
  7. 7.1/9 + 10/11 =
  8. 8.4/9 − 1/4 =
  9. 9.2/3 − 3/11 =
  10. 10.2/7 + 8/11 =
  11. 11.3/4 − 1/6 =
  12. 12.5/8 + 2/6 =
  13. 13.1/7 + 1/5 =
  14. 14.1/12 + 1/10 =
  15. 15.4/5 − 1/4 =
  16. 16.3/9 − 1/7 =
  17. 17.2/3 − 2/4 =
  18. 18.3/10 + 2/4 =
  19. 19.9/10 + 8/11 =
  20. 20.5/7 − 3/10 =
  21. 21.1/4 + 3/9 =
  22. 22.1/2 + 1/4 =
  23. 23.5/9 + 3/9 =
  24. 24.4/5 + 2/7 =
  25. 25.3/12 + 6/8 =
  26. 26.2/4 − 2/6 =
  27. 27.1/3 − 1/10 =
  28. 28.2/4 − 1/6 =
  29. 29.2/5 − 1/12 =
  30. 30.9/12 − 2/3 =
  31. 31.11/12 − 2/8 =
  32. 32.3/5 + 3/4 =
  33. 33.4/9 − 1/4 =
  34. 34.8/9 + 3/6 =
  35. 35.4/6 − 1/2 =
  36. 36.2/3 + 2/6 =
  37. 37.2/3 + 11/12 =
  38. 38.1/2 + 4/7 =
  39. 39.1/2 − 4/11 =
  40. 40.6/9 − 2/8 =

Answer key

  1. 7/18
  2. 7/8
  3. 100/99
  4. 2/3
  5. 13/45
  6. 20/21
  7. 101/99
  8. 7/36
  9. 13/33
  10. 78/77
  11. 7/12
  12. 23/24
  13. 12/35
  14. 11/60
  15. 11/20
  16. 4/21
  17. 1/6
  18. 4/5
  19. 179/110
  20. 29/70
  21. 7/12
  22. 3/4
  23. 8/9
  24. 38/35
  25. 1
  26. 1/6
  27. 7/30
  28. 1/3
  29. 19/60
  30. 1/12
  31. 2/3
  32. 27/20
  33. 7/36
  34. 25/18
  35. 1/6
  36. 1
  37. 19/12
  38. 15/14
  39. 3/22
  40. 5/12

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