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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 715 · 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. 1.5/9 − 1/2 =
  2. 2.1/6 + 2/7 =
  3. 3.1/9 + 4/12 =
  4. 4.4/8 + 7/10 =
  5. 5.2/5 + 4/7 =
  6. 6.6/9 + 4/10 =
  7. 7.2/3 − 3/6 =
  8. 8.1/2 + 1/2 =
  9. 9.9/11 + 7/8 =
  10. 10.4/7 − 1/3 =
  11. 11.1/2 + 1/2 =
  12. 12.1/4 + 3/12 =
  13. 13.3/7 − 1/5 =
  14. 14.6/10 − 1/4 =
  15. 15.7/8 − 1/10 =
  16. 16.6/10 − 3/6 =
  17. 17.1/2 − 1/11 =
  18. 18.5/12 − 3/10 =
  19. 19.5/10 + 1/2 =
  20. 20.4/7 − 1/2 =
  21. 21.3/11 − 1/12 =
  22. 22.6/12 + 1/5 =
  23. 23.1/3 − 3/11 =
  24. 24.10/12 − 5/11 =
  25. 25.4/5 − 9/12 =
  26. 26.2/3 − 2/8 =
  27. 27.5/6 − 4/5 =
  28. 28.6/8 + 3/4 =
  29. 29.1/4 + 1/3 =
  30. 30.8/12 + 5/8 =
  31. 31.1/12 + 1/4 =
  32. 32.3/8 + 1/8 =
  33. 33.10/11 − 1/5 =
  34. 34.4/5 + 1/5 =
  35. 35.9/11 − 1/2 =
  36. 36.3/10 + 2/6 =
  37. 37.8/10 + 2/3 =
  38. 38.1/2 + 9/11 =
  39. 39.8/9 + 1/2 =
  40. 40.1/3 + 10/12 =

Answer key

  1. 1/18
  2. 19/42
  3. 4/9
  4. 6/5
  5. 34/35
  6. 16/15
  7. 1/6
  8. 1
  9. 149/88
  10. 5/21
  11. 1
  12. 1/2
  13. 8/35
  14. 7/20
  15. 31/40
  16. 1/10
  17. 9/22
  18. 7/60
  19. 1
  20. 1/14
  21. 25/132
  22. 7/10
  23. 2/33
  24. 25/66
  25. 1/20
  26. 5/12
  27. 1/30
  28. 3/2
  29. 7/12
  30. 31/24
  31. 1/3
  32. 1/2
  33. 39/55
  34. 1
  35. 7/22
  36. 19/30
  37. 22/15
  38. 29/22
  39. 25/18
  40. 7/6

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