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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 862 · 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. 1.3/4 − 6/9 =
  2. 2.1/7 − 1/9 =
  3. 3.1/3 + 3/4 =
  4. 4.7/8 + 4/7 =
  5. 5.1/2 + 4/11 =
  6. 6.4/8 + 9/12 =
  7. 7.7/9 − 1/4 =
  8. 8.5/6 − 1/8 =
  9. 9.4/5 − 5/8 =
  10. 10.2/3 − 1/8 =
  11. 11.3/7 + 2/6 =
  12. 12.2/11 + 1/2 =
  13. 13.1/8 + 5/11 =
  14. 14.2/9 + 1/2 =
  15. 15.3/6 − 1/7 =
  16. 16.2/7 − 2/12 =
  17. 17.1/4 + 7/10 =
  18. 18.9/12 − 1/2 =
  19. 19.1/6 + 1/2 =
  20. 20.1/2 + 8/10 =
  21. 21.1/2 − 1/4 =
  22. 22.1/8 + 3/5 =
  23. 23.2/3 + 6/7 =
  24. 24.2/3 − 1/4 =
  25. 25.1/2 + 4/8 =
  26. 26.1/3 + 11/12 =
  27. 27.9/12 − 2/12 =
  28. 28.6/7 − 3/6 =
  29. 29.2/10 + 2/7 =
  30. 30.10/12 − 1/5 =
  31. 31.1/8 − 1/9 =
  32. 32.5/9 − 1/7 =
  33. 33.3/11 + 3/9 =
  34. 34.2/3 − 4/11 =
  35. 35.4/8 + 6/11 =
  36. 36.6/7 − 1/2 =
  37. 37.1/2 − 1/8 =
  38. 38.4/10 + 5/8 =
  39. 39.2/5 + 8/11 =
  40. 40.1/12 + 5/9 =

Answer key

  1. 1/12
  2. 2/63
  3. 13/12
  4. 81/56
  5. 19/22
  6. 5/4
  7. 19/36
  8. 17/24
  9. 7/40
  10. 13/24
  11. 16/21
  12. 15/22
  13. 51/88
  14. 13/18
  15. 5/14
  16. 5/42
  17. 19/20
  18. 1/4
  19. 2/3
  20. 13/10
  21. 1/4
  22. 29/40
  23. 32/21
  24. 5/12
  25. 1
  26. 5/4
  27. 7/12
  28. 5/14
  29. 17/35
  30. 19/30
  31. 1/72
  32. 26/63
  33. 20/33
  34. 10/33
  35. 23/22
  36. 5/14
  37. 3/8
  38. 41/40
  39. 62/55
  40. 23/36

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