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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 957 · 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. 1.1/4 + 8/10 =
  2. 2.5/8 − 3/12 =
  3. 3.8/11 − 2/4 =
  4. 4.1/8 + 7/9 =
  5. 5.3/5 + 2/6 =
  6. 6.5/8 − 2/8 =
  7. 7.2/6 + 9/11 =
  8. 8.6/7 + 2/6 =
  9. 9.4/5 − 1/6 =
  10. 10.7/9 − 4/11 =
  11. 11.1/6 + 1/10 =
  12. 12.2/6 + 1/3 =
  13. 13.5/6 − 1/3 =
  14. 14.1/2 + 1/4 =
  15. 15.10/11 − 2/4 =
  16. 16.2/11 + 1/12 =
  17. 17.7/10 − 5/8 =
  18. 18.4/6 − 2/4 =
  19. 19.1/2 − 1/4 =
  20. 20.5/6 + 3/6 =
  21. 21.2/4 − 3/12 =
  22. 22.1/2 + 4/5 =
  23. 23.1/7 + 3/4 =
  24. 24.1/2 + 3/11 =
  25. 25.4/8 + 6/12 =
  26. 26.1/2 + 3/8 =
  27. 27.2/6 + 8/9 =
  28. 28.1/2 + 4/8 =
  29. 29.9/10 − 2/9 =
  30. 30.1/2 + 1/2 =
  31. 31.5/7 + 1/7 =
  32. 32.4/8 + 2/7 =
  33. 33.1/2 + 7/8 =
  34. 34.7/9 − 4/11 =
  35. 35.7/10 − 1/4 =
  36. 36.11/12 − 3/4 =
  37. 37.5/9 + 1/3 =
  38. 38.5/8 + 5/12 =
  39. 39.2/4 + 7/11 =
  40. 40.1/8 + 5/9 =

Answer key

  1. 21/20
  2. 3/8
  3. 5/22
  4. 65/72
  5. 14/15
  6. 3/8
  7. 38/33
  8. 25/21
  9. 19/30
  10. 41/99
  11. 4/15
  12. 2/3
  13. 1/2
  14. 3/4
  15. 9/22
  16. 35/132
  17. 3/40
  18. 1/6
  19. 1/4
  20. 4/3
  21. 1/4
  22. 13/10
  23. 25/28
  24. 17/22
  25. 1
  26. 7/8
  27. 11/9
  28. 1
  29. 61/90
  30. 1
  31. 6/7
  32. 11/14
  33. 11/8
  34. 41/99
  35. 9/20
  36. 1/6
  37. 8/9
  38. 25/24
  39. 25/22
  40. 49/72

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