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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 291 · 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. 1.4/10 + 1/2 =
  2. 2.1/2 + 2/3 =
  3. 3.3/4 + 7/8 =
  4. 4.6/8 + 5/6 =
  5. 5.4/8 + 3/10 =
  6. 6.2/7 − 1/7 =
  7. 7.3/5 − 5/9 =
  8. 8.7/8 + 2/6 =
  9. 9.9/11 − 1/3 =
  10. 10.2/3 + 2/10 =
  11. 11.3/10 + 7/8 =
  12. 12.2/7 + 1/4 =
  13. 13.2/9 + 5/11 =
  14. 14.7/8 + 5/8 =
  15. 15.4/12 + 1/3 =
  16. 16.1/2 − 4/10 =
  17. 17.2/4 + 1/7 =
  18. 18.2/5 + 1/5 =
  19. 19.1/2 + 2/3 =
  20. 20.3/10 + 10/11 =
  21. 21.5/7 − 1/3 =
  22. 22.5/9 + 5/10 =
  23. 23.7/8 + 4/9 =
  24. 24.3/12 + 1/7 =
  25. 25.1/5 + 2/4 =
  26. 26.1/6 + 8/12 =
  27. 27.2/3 + 5/10 =
  28. 28.1/3 − 1/12 =
  29. 29.1/2 − 2/9 =
  30. 30.3/10 − 2/11 =
  31. 31.2/3 − 1/2 =
  32. 32.3/4 + 1/4 =
  33. 33.1/4 + 10/11 =
  34. 34.3/5 + 6/12 =
  35. 35.4/5 − 5/10 =
  36. 36.8/11 − 4/12 =
  37. 37.11/12 + 2/7 =
  38. 38.7/9 − 2/8 =
  39. 39.1/2 − 1/3 =
  40. 40.1/2 + 1/2 =

Answer key

  1. 9/10
  2. 7/6
  3. 13/8
  4. 19/12
  5. 4/5
  6. 1/7
  7. 2/45
  8. 29/24
  9. 16/33
  10. 13/15
  11. 47/40
  12. 15/28
  13. 67/99
  14. 3/2
  15. 2/3
  16. 1/10
  17. 9/14
  18. 3/5
  19. 7/6
  20. 133/110
  21. 8/21
  22. 19/18
  23. 95/72
  24. 11/28
  25. 7/10
  26. 5/6
  27. 7/6
  28. 1/4
  29. 5/18
  30. 13/110
  31. 1/6
  32. 1
  33. 51/44
  34. 11/10
  35. 3/10
  36. 13/33
  37. 101/84
  38. 19/36
  39. 1/6
  40. 1

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