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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 989 · 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. 1.1/5 + 7/10 =
  2. 2.4/5 + 6/7 =
  3. 3.2/3 − 1/6 =
  4. 4.3/7 + 4/5 =
  5. 5.1/10 + 2/7 =
  6. 6.3/11 + 2/11 =
  7. 7.4/5 + 2/10 =
  8. 8.2/3 + 5/9 =
  9. 9.1/3 + 1/3 =
  10. 10.5/7 + 11/12 =
  11. 11.1/2 − 4/10 =
  12. 12.1/2 + 2/3 =
  13. 13.6/10 − 3/9 =
  14. 14.8/9 − 1/8 =
  15. 15.1/12 + 8/12 =
  16. 16.2/3 + 2/7 =
  17. 17.4/6 + 5/7 =
  18. 18.1/2 + 4/10 =
  19. 19.4/11 + 1/2 =
  20. 20.5/12 + 3/10 =
  21. 21.5/11 + 1/5 =
  22. 22.2/3 + 2/8 =
  23. 23.5/6 + 5/9 =
  24. 24.2/4 + 5/7 =
  25. 25.2/3 + 2/3 =
  26. 26.1/2 − 3/10 =
  27. 27.4/6 + 6/9 =
  28. 28.4/7 − 5/10 =
  29. 29.1/4 + 6/7 =
  30. 30.1/3 + 4/7 =
  31. 31.2/5 − 2/12 =
  32. 32.3/4 − 4/9 =
  33. 33.1/2 + 1/2 =
  34. 34.5/6 − 3/4 =
  35. 35.6/7 + 1/6 =
  36. 36.1/6 + 9/11 =
  37. 37.3/4 − 2/3 =
  38. 38.3/6 + 1/2 =
  39. 39.8/12 + 1/2 =
  40. 40.1/2 + 6/12 =

Answer key

  1. 9/10
  2. 58/35
  3. 1/2
  4. 43/35
  5. 27/70
  6. 5/11
  7. 1
  8. 11/9
  9. 2/3
  10. 137/84
  11. 1/10
  12. 7/6
  13. 4/15
  14. 55/72
  15. 3/4
  16. 20/21
  17. 29/21
  18. 9/10
  19. 19/22
  20. 43/60
  21. 36/55
  22. 11/12
  23. 25/18
  24. 17/14
  25. 4/3
  26. 1/5
  27. 4/3
  28. 1/14
  29. 31/28
  30. 19/21
  31. 7/30
  32. 11/36
  33. 1
  34. 1/12
  35. 43/42
  36. 65/66
  37. 1/12
  38. 1
  39. 7/6
  40. 1

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