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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 721 · 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 + 5/6 =
  2. 2.3/4 − 1/3 =
  3. 3.3/8 + 8/12 =
  4. 4.1/3 + 7/9 =
  5. 5.1/5 + 3/6 =
  6. 6.2/6 + 1/5 =
  7. 7.4/6 − 7/11 =
  8. 8.5/8 − 4/8 =
  9. 9.1/3 − 1/7 =
  10. 10.1/11 + 1/3 =
  11. 11.7/9 + 11/12 =
  12. 12.2/5 + 3/4 =
  13. 13.4/6 + 2/4 =
  14. 14.1/2 + 3/4 =
  15. 15.7/8 − 1/2 =
  16. 16.5/7 + 5/6 =
  17. 17.6/10 − 1/2 =
  18. 18.11/12 − 1/2 =
  19. 19.2/4 − 1/8 =
  20. 20.3/5 + 3/4 =
  21. 21.3/4 − 1/3 =
  22. 22.1/12 + 3/9 =
  23. 23.4/5 + 1/3 =
  24. 24.1/3 + 4/11 =
  25. 25.2/4 + 2/6 =
  26. 26.4/7 + 8/9 =
  27. 27.8/12 + 1/2 =
  28. 28.4/9 + 3/5 =
  29. 29.3/5 + 5/6 =
  30. 30.1/2 − 1/11 =
  31. 31.4/8 + 11/12 =
  32. 32.4/5 + 2/9 =
  33. 33.6/7 − 1/2 =
  34. 34.3/6 − 2/5 =
  35. 35.4/9 + 1/2 =
  36. 36.1/2 + 2/12 =
  37. 37.5/7 + 2/8 =
  38. 38.1/4 + 1/2 =
  39. 39.1/2 − 1/6 =
  40. 40.5/6 + 6/9 =

Answer key

  1. 3/2
  2. 5/12
  3. 25/24
  4. 10/9
  5. 7/10
  6. 8/15
  7. 1/33
  8. 1/8
  9. 4/21
  10. 14/33
  11. 61/36
  12. 23/20
  13. 7/6
  14. 5/4
  15. 3/8
  16. 65/42
  17. 1/10
  18. 5/12
  19. 3/8
  20. 27/20
  21. 5/12
  22. 5/12
  23. 17/15
  24. 23/33
  25. 5/6
  26. 92/63
  27. 7/6
  28. 47/45
  29. 43/30
  30. 9/22
  31. 17/12
  32. 46/45
  33. 5/14
  34. 1/10
  35. 17/18
  36. 2/3
  37. 27/28
  38. 3/4
  39. 1/3
  40. 3/2

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