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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 75 · 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. 1.2/3 − 1/2 =
  2. 2.5/6 + 8/9 =
  3. 3.1/2 − 4/9 =
  4. 4.1/2 + 2/3 =
  5. 5.4/9 + 5/7 =
  6. 6.2/8 + 2/3 =
  7. 7.2/12 − 1/10 =
  8. 8.2/4 + 1/3 =
  9. 9.6/9 − 1/2 =
  10. 10.1/3 + 4/11 =
  11. 11.4/6 + 2/3 =
  12. 12.3/5 + 9/10 =
  13. 13.2/3 − 2/6 =
  14. 14.1/2 + 1/5 =
  15. 15.4/12 + 4/5 =
  16. 16.2/3 − 1/2 =
  17. 17.2/3 + 1/2 =
  18. 18.7/9 − 2/4 =
  19. 19.2/7 + 1/2 =
  20. 20.4/7 + 1/9 =
  21. 21.11/12 + 1/4 =
  22. 22.4/7 + 2/3 =
  23. 23.2/5 + 6/12 =
  24. 24.2/11 + 4/9 =
  25. 25.5/10 + 2/10 =
  26. 26.4/5 + 1/4 =
  27. 27.2/10 + 1/7 =
  28. 28.2/4 + 3/6 =
  29. 29.5/6 − 4/8 =
  30. 30.7/9 + 11/12 =
  31. 31.1/2 − 2/6 =
  32. 32.2/4 − 3/9 =
  33. 33.1/2 + 1/2 =
  34. 34.1/10 + 1/8 =
  35. 35.11/12 + 8/9 =
  36. 36.4/7 − 2/7 =
  37. 37.9/11 + 3/7 =
  38. 38.5/9 + 5/7 =
  39. 39.2/3 − 3/5 =
  40. 40.6/9 + 3/4 =

Answer key

  1. 1/6
  2. 31/18
  3. 1/18
  4. 7/6
  5. 73/63
  6. 11/12
  7. 1/15
  8. 5/6
  9. 1/6
  10. 23/33
  11. 4/3
  12. 3/2
  13. 1/3
  14. 7/10
  15. 17/15
  16. 1/6
  17. 7/6
  18. 5/18
  19. 11/14
  20. 43/63
  21. 7/6
  22. 26/21
  23. 9/10
  24. 62/99
  25. 7/10
  26. 21/20
  27. 12/35
  28. 1
  29. 1/3
  30. 61/36
  31. 1/6
  32. 1/6
  33. 1
  34. 9/40
  35. 65/36
  36. 2/7
  37. 96/77
  38. 80/63
  39. 1/15
  40. 17/12

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