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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 483 · 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. 1.5/6 + 4/11 =
  2. 2.4/5 + 1/3 =
  3. 3.1/2 + 1/2 =
  4. 4.1/2 + 4/8 =
  5. 5.1/2 + 1/2 =
  6. 6.2/4 + 2/3 =
  7. 7.5/6 + 9/11 =
  8. 8.9/10 + 6/12 =
  9. 9.1/5 + 1/2 =
  10. 10.4/5 − 2/3 =
  11. 11.2/4 − 4/9 =
  12. 12.2/4 + 6/10 =
  13. 13.8/9 − 1/3 =
  14. 14.1/2 + 1/2 =
  15. 15.4/5 + 7/9 =
  16. 16.2/4 + 3/11 =
  17. 17.6/7 − 1/2 =
  18. 18.3/4 − 1/4 =
  19. 19.7/8 + 11/12 =
  20. 20.1/2 − 2/9 =
  21. 21.1/9 + 5/6 =
  22. 22.2/9 − 1/6 =
  23. 23.2/4 − 2/6 =
  24. 24.3/7 − 1/9 =
  25. 25.1/3 + 2/6 =
  26. 26.4/6 + 10/12 =
  27. 27.5/6 − 1/2 =
  28. 28.4/6 − 5/9 =
  29. 29.4/11 + 6/7 =
  30. 30.7/9 − 2/4 =
  31. 31.9/12 + 6/12 =
  32. 32.7/8 − 1/6 =
  33. 33.1/6 + 1/9 =
  34. 34.2/4 − 5/11 =
  35. 35.3/7 + 1/6 =
  36. 36.2/7 + 3/7 =
  37. 37.2/5 − 1/3 =
  38. 38.6/8 + 2/10 =
  39. 39.5/6 − 1/4 =
  40. 40.1/6 + 4/11 =

Answer key

  1. 79/66
  2. 17/15
  3. 1
  4. 1
  5. 1
  6. 7/6
  7. 109/66
  8. 7/5
  9. 7/10
  10. 2/15
  11. 1/18
  12. 11/10
  13. 5/9
  14. 1
  15. 71/45
  16. 17/22
  17. 5/14
  18. 1/2
  19. 43/24
  20. 5/18
  21. 17/18
  22. 1/18
  23. 1/6
  24. 20/63
  25. 2/3
  26. 3/2
  27. 1/3
  28. 1/9
  29. 94/77
  30. 5/18
  31. 5/4
  32. 17/24
  33. 5/18
  34. 1/22
  35. 25/42
  36. 5/7
  37. 1/15
  38. 19/20
  39. 7/12
  40. 35/66

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