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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 492 · 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. 1.4/8 − 3/7 =
  2. 2.2/3 + 1/9 =
  3. 3.1/2 − 1/4 =
  4. 4.1/3 − 1/10 =
  5. 5.1/7 + 1/2 =
  6. 6.5/12 − 2/7 =
  7. 7.1/3 + 1/2 =
  8. 8.2/4 + 1/2 =
  9. 9.1/4 + 2/8 =
  10. 10.1/3 + 6/7 =
  11. 11.4/5 − 2/4 =
  12. 12.2/4 + 5/12 =
  13. 13.1/2 + 1/4 =
  14. 14.2/3 − 1/8 =
  15. 15.1/8 + 10/12 =
  16. 16.1/2 − 3/7 =
  17. 17.6/8 + 5/6 =
  18. 18.2/10 + 2/3 =
  19. 19.3/7 + 1/2 =
  20. 20.3/4 − 4/7 =
  21. 21.2/9 + 1/11 =
  22. 22.5/10 + 3/5 =
  23. 23.3/4 + 5/7 =
  24. 24.5/8 + 7/8 =
  25. 25.5/7 + 3/11 =
  26. 26.3/5 + 1/8 =
  27. 27.5/10 + 2/12 =
  28. 28.4/6 + 1/8 =
  29. 29.3/7 − 2/7 =
  30. 30.10/12 + 3/5 =
  31. 31.11/12 − 1/6 =
  32. 32.2/3 + 1/8 =
  33. 33.2/5 + 3/4 =
  34. 34.1/12 + 1/2 =
  35. 35.4/9 + 2/10 =
  36. 36.2/8 + 1/2 =
  37. 37.2/3 + 1/2 =
  38. 38.1/2 + 1/8 =
  39. 39.2/8 + 10/12 =
  40. 40.1/2 − 3/7 =

Answer key

  1. 1/14
  2. 7/9
  3. 1/4
  4. 7/30
  5. 9/14
  6. 11/84
  7. 5/6
  8. 1
  9. 1/2
  10. 25/21
  11. 3/10
  12. 11/12
  13. 3/4
  14. 13/24
  15. 23/24
  16. 1/14
  17. 19/12
  18. 13/15
  19. 13/14
  20. 5/28
  21. 31/99
  22. 11/10
  23. 41/28
  24. 3/2
  25. 76/77
  26. 29/40
  27. 2/3
  28. 19/24
  29. 1/7
  30. 43/30
  31. 3/4
  32. 19/24
  33. 23/20
  34. 7/12
  35. 29/45
  36. 3/4
  37. 7/6
  38. 5/8
  39. 13/12
  40. 1/14

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