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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 400 · 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. 1.2/12 + 2/11 =
  2. 2.1/2 + 3/8 =
  3. 3.6/10 − 4/9 =
  4. 4.1/3 + 1/8 =
  5. 5.6/7 + 2/9 =
  6. 6.1/5 + 4/6 =
  7. 7.8/10 − 1/10 =
  8. 8.1/2 + 1/10 =
  9. 9.5/7 − 4/12 =
  10. 10.3/4 − 3/5 =
  11. 11.1/2 + 4/12 =
  12. 12.4/10 + 1/2 =
  13. 13.2/3 − 2/4 =
  14. 14.5/6 − 3/11 =
  15. 15.2/3 + 3/4 =
  16. 16.4/5 − 2/3 =
  17. 17.4/8 + 1/8 =
  18. 18.4/10 + 2/5 =
  19. 19.2/6 + 4/12 =
  20. 20.1/2 + 1/2 =
  21. 21.5/12 + 1/12 =
  22. 22.1/2 − 1/4 =
  23. 23.3/5 + 1/6 =
  24. 24.4/7 + 1/10 =
  25. 25.4/9 + 6/10 =
  26. 26.1/3 + 3/5 =
  27. 27.1/5 + 1/2 =
  28. 28.7/11 + 6/9 =
  29. 29.1/4 + 2/4 =
  30. 30.2/5 + 3/4 =
  31. 31.3/4 + 1/8 =
  32. 32.5/10 + 2/6 =
  33. 33.5/10 + 5/10 =
  34. 34.8/9 + 2/4 =
  35. 35.6/7 + 5/7 =
  36. 36.5/6 − 4/7 =
  37. 37.1/6 + 4/6 =
  38. 38.3/4 − 3/12 =
  39. 39.1/4 − 1/5 =
  40. 40.1/4 + 4/6 =

Answer key

  1. 23/66
  2. 7/8
  3. 7/45
  4. 11/24
  5. 68/63
  6. 13/15
  7. 7/10
  8. 3/5
  9. 8/21
  10. 3/20
  11. 5/6
  12. 9/10
  13. 1/6
  14. 37/66
  15. 17/12
  16. 2/15
  17. 5/8
  18. 4/5
  19. 2/3
  20. 1
  21. 1/2
  22. 1/4
  23. 23/30
  24. 47/70
  25. 47/45
  26. 14/15
  27. 7/10
  28. 43/33
  29. 3/4
  30. 23/20
  31. 7/8
  32. 5/6
  33. 1
  34. 25/18
  35. 11/7
  36. 11/42
  37. 5/6
  38. 1/2
  39. 1/20
  40. 11/12

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