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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 872 · 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. 1.1/12 + 7/11 =
  2. 2.10/11 − 7/12 =
  3. 3.3/5 − 1/4 =
  4. 4.5/7 + 1/2 =
  5. 5.6/10 − 2/9 =
  6. 6.1/2 − 3/8 =
  7. 7.1/2 + 2/3 =
  8. 8.5/10 + 2/6 =
  9. 9.4/5 + 9/10 =
  10. 10.1/4 − 1/10 =
  11. 11.4/7 + 2/4 =
  12. 12.4/6 + 3/9 =
  13. 13.1/2 + 1/5 =
  14. 14.9/10 + 3/9 =
  15. 15.3/7 + 1/3 =
  16. 16.4/10 + 6/12 =
  17. 17.9/10 − 1/2 =
  18. 18.6/7 − 1/12 =
  19. 19.5/10 + 3/4 =
  20. 20.3/5 − 3/11 =
  21. 21.5/9 + 1/3 =
  22. 22.2/11 + 5/7 =
  23. 23.4/7 + 7/10 =
  24. 24.3/7 + 1/10 =
  25. 25.3/8 + 6/12 =
  26. 26.4/12 + 2/6 =
  27. 27.1/8 + 1/4 =
  28. 28.1/3 + 3/10 =
  29. 29.3/5 − 1/3 =
  30. 30.1/11 + 3/7 =
  31. 31.2/3 − 1/2 =
  32. 32.3/5 − 2/4 =
  33. 33.2/3 − 5/8 =
  34. 34.8/10 − 4/6 =
  35. 35.2/8 − 2/12 =
  36. 36.5/7 − 4/6 =
  37. 37.1/8 + 6/8 =
  38. 38.1/2 + 1/2 =
  39. 39.3/8 + 1/2 =
  40. 40.4/11 − 1/7 =

Answer key

  1. 95/132
  2. 43/132
  3. 7/20
  4. 17/14
  5. 17/45
  6. 1/8
  7. 7/6
  8. 5/6
  9. 17/10
  10. 3/20
  11. 15/14
  12. 1
  13. 7/10
  14. 37/30
  15. 16/21
  16. 9/10
  17. 2/5
  18. 65/84
  19. 5/4
  20. 18/55
  21. 8/9
  22. 69/77
  23. 89/70
  24. 37/70
  25. 7/8
  26. 2/3
  27. 3/8
  28. 19/30
  29. 4/15
  30. 40/77
  31. 1/6
  32. 1/10
  33. 1/24
  34. 2/15
  35. 1/12
  36. 1/21
  37. 7/8
  38. 1
  39. 7/8
  40. 17/77

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