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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 625 · 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. 1.2/4 − 3/10 =
  2. 2.2/5 + 1/2 =
  3. 3.1/2 − 1/6 =
  4. 4.1/2 + 3/4 =
  5. 5.1/5 + 1/2 =
  6. 6.3/4 + 1/2 =
  7. 7.8/10 − 5/11 =
  8. 8.2/3 − 4/7 =
  9. 9.2/8 + 1/7 =
  10. 10.1/8 + 5/10 =
  11. 11.6/7 − 2/3 =
  12. 12.9/12 − 1/2 =
  13. 13.9/10 − 4/5 =
  14. 14.7/8 + 1/2 =
  15. 15.3/4 + 4/6 =
  16. 16.2/12 + 2/3 =
  17. 17.7/8 − 1/8 =
  18. 18.1/7 + 7/8 =
  19. 19.2/3 − 3/7 =
  20. 20.3/8 + 1/4 =
  21. 21.8/11 + 1/5 =
  22. 22.1/9 + 8/11 =
  23. 23.4/5 + 7/12 =
  24. 24.2/11 + 4/9 =
  25. 25.5/7 + 1/2 =
  26. 26.5/7 + 1/5 =
  27. 27.3/8 − 1/3 =
  28. 28.5/12 − 1/7 =
  29. 29.3/6 + 1/10 =
  30. 30.3/4 + 5/7 =
  31. 31.4/6 − 2/4 =
  32. 32.3/10 + 2/3 =
  33. 33.1/3 + 1/8 =
  34. 34.9/10 + 5/6 =
  35. 35.1/3 + 2/4 =
  36. 36.1/2 + 3/7 =
  37. 37.2/3 + 3/12 =
  38. 38.9/11 − 3/12 =
  39. 39.5/6 + 10/11 =
  40. 40.8/9 + 2/10 =

Answer key

  1. 1/5
  2. 9/10
  3. 1/3
  4. 5/4
  5. 7/10
  6. 5/4
  7. 19/55
  8. 2/21
  9. 11/28
  10. 5/8
  11. 4/21
  12. 1/4
  13. 1/10
  14. 11/8
  15. 17/12
  16. 5/6
  17. 3/4
  18. 57/56
  19. 5/21
  20. 5/8
  21. 51/55
  22. 83/99
  23. 83/60
  24. 62/99
  25. 17/14
  26. 32/35
  27. 1/24
  28. 23/84
  29. 3/5
  30. 41/28
  31. 1/6
  32. 29/30
  33. 11/24
  34. 26/15
  35. 5/6
  36. 13/14
  37. 11/12
  38. 25/44
  39. 115/66
  40. 49/45

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