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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 948 · 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. 1.1/3 + 3/8 =
  2. 2.4/5 − 3/7 =
  3. 3.10/12 − 2/5 =
  4. 4.4/12 + 3/5 =
  5. 5.2/3 − 1/5 =
  6. 6.2/11 − 1/8 =
  7. 7.1/11 + 3/4 =
  8. 8.1/2 + 2/10 =
  9. 9.5/9 − 1/2 =
  10. 10.10/12 − 2/7 =
  11. 11.1/9 + 1/2 =
  12. 12.2/6 − 2/7 =
  13. 13.3/9 + 7/11 =
  14. 14.8/9 − 3/5 =
  15. 15.4/10 + 2/8 =
  16. 16.1/2 + 1/2 =
  17. 17.4/5 + 2/11 =
  18. 18.2/11 + 1/3 =
  19. 19.3/5 + 4/9 =
  20. 20.3/12 + 2/9 =
  21. 21.1/2 − 2/8 =
  22. 22.1/2 − 2/7 =
  23. 23.5/6 − 2/3 =
  24. 24.2/3 + 4/8 =
  25. 25.3/4 − 7/10 =
  26. 26.2/8 + 1/4 =
  27. 27.2/3 − 1/3 =
  28. 28.1/2 + 1/5 =
  29. 29.1/2 + 2/5 =
  30. 30.3/5 − 1/3 =
  31. 31.9/11 − 1/4 =
  32. 32.3/10 + 6/7 =
  33. 33.1/2 + 1/8 =
  34. 34.5/7 + 6/10 =
  35. 35.2/4 + 2/4 =
  36. 36.1/5 − 2/12 =
  37. 37.3/9 + 1/7 =
  38. 38.1/2 + 1/5 =
  39. 39.1/5 + 2/11 =
  40. 40.6/8 + 5/9 =

Answer key

  1. 17/24
  2. 13/35
  3. 13/30
  4. 14/15
  5. 7/15
  6. 5/88
  7. 37/44
  8. 7/10
  9. 1/18
  10. 23/42
  11. 11/18
  12. 1/21
  13. 32/33
  14. 13/45
  15. 13/20
  16. 1
  17. 54/55
  18. 17/33
  19. 47/45
  20. 17/36
  21. 1/4
  22. 3/14
  23. 1/6
  24. 7/6
  25. 1/20
  26. 1/2
  27. 1/3
  28. 7/10
  29. 9/10
  30. 4/15
  31. 25/44
  32. 81/70
  33. 5/8
  34. 46/35
  35. 1
  36. 1/30
  37. 10/21
  38. 7/10
  39. 21/55
  40. 47/36

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