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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 146 · 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 − 3/7 =
  2. 2.1/6 − 1/12 =
  3. 3.1/2 + 1/10 =
  4. 4.1/3 + 2/6 =
  5. 5.8/12 + 1/3 =
  6. 6.1/3 + 9/12 =
  7. 7.2/5 + 4/8 =
  8. 8.3/5 − 2/4 =
  9. 9.10/12 + 4/5 =
  10. 10.2/4 + 2/10 =
  11. 11.1/5 + 1/7 =
  12. 12.4/7 + 1/7 =
  13. 13.9/11 − 1/2 =
  14. 14.10/12 − 9/12 =
  15. 15.4/5 − 1/3 =
  16. 16.6/12 + 1/2 =
  17. 17.9/12 − 5/12 =
  18. 18.10/12 + 1/2 =
  19. 19.6/10 + 3/5 =
  20. 20.2/4 + 3/10 =
  21. 21.6/7 − 6/12 =
  22. 22.2/3 + 6/7 =
  23. 23.3/11 + 2/10 =
  24. 24.6/7 − 5/8 =
  25. 25.8/9 − 5/10 =
  26. 26.1/6 + 4/12 =
  27. 27.7/9 + 1/7 =
  28. 28.2/3 + 4/5 =
  29. 29.2/4 + 1/11 =
  30. 30.2/3 − 1/11 =
  31. 31.5/7 + 1/2 =
  32. 32.3/7 + 2/7 =
  33. 33.1/3 − 1/12 =
  34. 34.2/4 − 2/10 =
  35. 35.3/9 + 1/3 =
  36. 36.4/5 − 1/6 =
  37. 37.2/4 − 1/5 =
  38. 38.1/2 + 3/8 =
  39. 39.6/11 + 5/8 =
  40. 40.9/12 − 2/5 =

Answer key

  1. 1/14
  2. 1/12
  3. 3/5
  4. 2/3
  5. 1
  6. 13/12
  7. 9/10
  8. 1/10
  9. 49/30
  10. 7/10
  11. 12/35
  12. 5/7
  13. 7/22
  14. 1/12
  15. 7/15
  16. 1
  17. 1/3
  18. 4/3
  19. 6/5
  20. 4/5
  21. 5/14
  22. 32/21
  23. 26/55
  24. 13/56
  25. 7/18
  26. 1/2
  27. 58/63
  28. 22/15
  29. 13/22
  30. 19/33
  31. 17/14
  32. 5/7
  33. 1/4
  34. 3/10
  35. 2/3
  36. 19/30
  37. 3/10
  38. 7/8
  39. 103/88
  40. 7/20

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