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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 735 · 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. 1.1/2 + 9/11 =
  2. 2.1/2 − 2/10 =
  3. 3.4/5 − 1/2 =
  4. 4.1/4 − 1/5 =
  5. 5.2/6 + 1/8 =
  6. 6.5/11 + 5/8 =
  7. 7.3/10 + 3/11 =
  8. 8.1/7 + 1/2 =
  9. 9.2/3 − 2/12 =
  10. 10.6/7 + 6/7 =
  11. 11.3/12 + 4/9 =
  12. 12.1/5 + 3/9 =
  13. 13.7/11 + 6/7 =
  14. 14.2/9 + 4/5 =
  15. 15.1/2 + 2/3 =
  16. 16.1/10 + 2/12 =
  17. 17.7/9 − 4/6 =
  18. 18.2/4 − 3/10 =
  19. 19.9/12 − 1/2 =
  20. 20.2/3 − 3/8 =
  21. 21.2/5 + 1/3 =
  22. 22.1/9 − 1/10 =
  23. 23.1/2 + 1/3 =
  24. 24.2/5 + 5/11 =
  25. 25.4/7 + 1/11 =
  26. 26.3/5 + 10/11 =
  27. 27.4/9 + 1/2 =
  28. 28.4/9 − 1/6 =
  29. 29.5/9 + 1/3 =
  30. 30.1/4 + 1/9 =
  31. 31.1/11 + 10/11 =
  32. 32.1/2 − 1/3 =
  33. 33.3/10 + 4/6 =
  34. 34.4/5 + 8/12 =
  35. 35.3/4 − 3/6 =
  36. 36.1/2 + 1/2 =
  37. 37.3/7 + 3/5 =
  38. 38.1/4 + 1/3 =
  39. 39.2/3 − 1/4 =
  40. 40.1/4 + 7/10 =

Answer key

  1. 29/22
  2. 3/10
  3. 3/10
  4. 1/20
  5. 11/24
  6. 95/88
  7. 63/110
  8. 9/14
  9. 1/2
  10. 12/7
  11. 25/36
  12. 8/15
  13. 115/77
  14. 46/45
  15. 7/6
  16. 4/15
  17. 1/9
  18. 1/5
  19. 1/4
  20. 7/24
  21. 11/15
  22. 1/90
  23. 5/6
  24. 47/55
  25. 51/77
  26. 83/55
  27. 17/18
  28. 5/18
  29. 8/9
  30. 13/36
  31. 1
  32. 1/6
  33. 29/30
  34. 22/15
  35. 1/4
  36. 1
  37. 36/35
  38. 7/12
  39. 5/12
  40. 19/20

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