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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 83 · 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 − 1/6 =
  2. 2.5/6 − 4/10 =
  3. 3.5/10 + 9/12 =
  4. 4.1/4 + 1/2 =
  5. 5.4/8 + 2/6 =
  6. 6.6/7 + 2/3 =
  7. 7.6/8 − 1/8 =
  8. 8.7/8 + 3/4 =
  9. 9.3/4 + 2/7 =
  10. 10.5/7 + 2/3 =
  11. 11.3/6 − 1/3 =
  12. 12.5/9 + 1/5 =
  13. 13.2/12 + 1/2 =
  14. 14.1/3 + 4/10 =
  15. 15.1/6 + 1/5 =
  16. 16.7/12 + 1/7 =
  17. 17.1/3 + 7/8 =
  18. 18.4/12 + 1/4 =
  19. 19.4/5 + 3/4 =
  20. 20.4/6 + 4/6 =
  21. 21.7/8 − 6/11 =
  22. 22.3/4 + 1/2 =
  23. 23.3/4 − 4/11 =
  24. 24.1/2 + 1/2 =
  25. 25.1/2 + 2/4 =
  26. 26.1/9 + 3/8 =
  27. 27.1/10 + 9/11 =
  28. 28.9/11 + 2/3 =
  29. 29.1/2 + 6/12 =
  30. 30.2/3 + 1/5 =
  31. 31.4/9 + 2/3 =
  32. 32.4/7 + 3/10 =
  33. 33.8/9 − 1/2 =
  34. 34.1/6 + 1/4 =
  35. 35.4/9 − 2/6 =
  36. 36.1/2 − 1/3 =
  37. 37.7/11 + 2/7 =
  38. 38.2/5 + 3/5 =
  39. 39.7/10 + 1/2 =
  40. 40.6/10 + 8/10 =

Answer key

  1. 1/6
  2. 13/30
  3. 5/4
  4. 3/4
  5. 5/6
  6. 32/21
  7. 5/8
  8. 13/8
  9. 29/28
  10. 29/21
  11. 1/6
  12. 34/45
  13. 2/3
  14. 11/15
  15. 11/30
  16. 61/84
  17. 29/24
  18. 7/12
  19. 31/20
  20. 4/3
  21. 29/88
  22. 5/4
  23. 17/44
  24. 1
  25. 1
  26. 35/72
  27. 101/110
  28. 49/33
  29. 1
  30. 13/15
  31. 10/9
  32. 61/70
  33. 7/18
  34. 5/12
  35. 1/9
  36. 1/6
  37. 71/77
  38. 1
  39. 6/5
  40. 7/5

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