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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 360 · 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. 1.4/6 + 2/7 =
  2. 2.1/2 − 1/8 =
  3. 3.2/4 + 4/8 =
  4. 4.5/12 + 3/9 =
  5. 5.1/3 + 4/8 =
  6. 6.2/5 + 4/10 =
  7. 7.6/7 + 2/10 =
  8. 8.4/6 − 1/10 =
  9. 9.5/8 + 1/4 =
  10. 10.3/10 + 1/4 =
  11. 11.7/12 + 4/6 =
  12. 12.2/4 + 1/2 =
  13. 13.2/3 − 1/3 =
  14. 14.7/8 − 1/4 =
  15. 15.7/9 − 1/4 =
  16. 16.2/3 − 2/8 =
  17. 17.9/10 − 1/3 =
  18. 18.2/6 − 1/9 =
  19. 19.2/3 − 5/9 =
  20. 20.5/9 + 5/7 =
  21. 21.3/6 + 2/4 =
  22. 22.6/12 + 1/2 =
  23. 23.4/6 + 11/12 =
  24. 24.1/6 + 10/11 =
  25. 25.5/12 + 1/2 =
  26. 26.2/11 + 2/3 =
  27. 27.6/8 + 3/11 =
  28. 28.2/3 + 2/3 =
  29. 29.4/5 − 1/3 =
  30. 30.3/5 + 4/5 =
  31. 31.4/5 − 2/12 =
  32. 32.8/11 − 2/3 =
  33. 33.7/9 + 10/12 =
  34. 34.1/5 + 1/7 =
  35. 35.3/12 + 2/4 =
  36. 36.1/3 + 1/2 =
  37. 37.1/2 + 1/2 =
  38. 38.1/2 + 4/9 =
  39. 39.2/3 − 1/2 =
  40. 40.5/7 + 2/10 =

Answer key

  1. 20/21
  2. 3/8
  3. 1
  4. 3/4
  5. 5/6
  6. 4/5
  7. 37/35
  8. 17/30
  9. 7/8
  10. 11/20
  11. 5/4
  12. 1
  13. 1/3
  14. 5/8
  15. 19/36
  16. 5/12
  17. 17/30
  18. 2/9
  19. 1/9
  20. 80/63
  21. 1
  22. 1
  23. 19/12
  24. 71/66
  25. 11/12
  26. 28/33
  27. 45/44
  28. 4/3
  29. 7/15
  30. 7/5
  31. 19/30
  32. 2/33
  33. 29/18
  34. 12/35
  35. 3/4
  36. 5/6
  37. 1
  38. 17/18
  39. 1/6
  40. 32/35

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