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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 518 · 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 − 1/8 =
  2. 2.4/6 + 6/9 =
  3. 3.5/8 + 1/2 =
  4. 4.4/5 − 4/6 =
  5. 5.5/9 + 9/12 =
  6. 6.10/11 − 1/2 =
  7. 7.8/9 − 2/8 =
  8. 8.3/11 + 1/10 =
  9. 9.1/5 + 2/10 =
  10. 10.2/3 − 1/5 =
  11. 11.2/3 + 1/4 =
  12. 12.1/4 + 4/5 =
  13. 13.4/11 + 3/8 =
  14. 14.4/9 + 1/2 =
  15. 15.1/3 + 3/8 =
  16. 16.6/7 − 9/11 =
  17. 17.1/9 + 5/6 =
  18. 18.2/3 + 1/2 =
  19. 19.2/3 + 2/5 =
  20. 20.8/10 + 2/5 =
  21. 21.5/6 + 4/5 =
  22. 22.3/4 − 8/11 =
  23. 23.5/6 + 5/8 =
  24. 24.8/9 − 1/8 =
  25. 25.2/3 − 1/3 =
  26. 26.4/6 − 1/3 =
  27. 27.2/4 − 1/7 =
  28. 28.2/6 − 1/7 =
  29. 29.4/9 − 1/7 =
  30. 30.4/8 − 2/9 =
  31. 31.1/4 + 1/4 =
  32. 32.1/10 + 2/3 =
  33. 33.4/5 − 2/3 =
  34. 34.5/7 + 1/9 =
  35. 35.1/2 + 1/8 =
  36. 36.2/4 + 4/6 =
  37. 37.10/12 − 2/4 =
  38. 38.6/9 − 3/8 =
  39. 39.5/8 − 3/12 =
  40. 40.9/10 − 3/7 =

Answer key

  1. 17/24
  2. 4/3
  3. 9/8
  4. 2/15
  5. 47/36
  6. 9/22
  7. 23/36
  8. 41/110
  9. 2/5
  10. 7/15
  11. 11/12
  12. 21/20
  13. 65/88
  14. 17/18
  15. 17/24
  16. 3/77
  17. 17/18
  18. 7/6
  19. 16/15
  20. 6/5
  21. 49/30
  22. 1/44
  23. 35/24
  24. 55/72
  25. 1/3
  26. 1/3
  27. 5/14
  28. 4/21
  29. 19/63
  30. 5/18
  31. 1/2
  32. 23/30
  33. 2/15
  34. 52/63
  35. 5/8
  36. 7/6
  37. 1/3
  38. 7/24
  39. 3/8
  40. 33/70

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