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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 251 · 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. 1.3/12 + 2/5 =
  2. 2.4/7 − 4/8 =
  3. 3.3/4 + 1/2 =
  4. 4.10/11 − 2/12 =
  5. 5.6/10 − 2/4 =
  6. 6.1/3 + 2/4 =
  7. 7.1/3 − 1/7 =
  8. 8.1/2 + 9/11 =
  9. 9.6/7 + 1/2 =
  10. 10.2/4 + 1/8 =
  11. 11.3/7 − 2/7 =
  12. 12.1/2 + 1/6 =
  13. 13.2/7 − 1/11 =
  14. 14.4/7 + 3/5 =
  15. 15.2/3 + 1/2 =
  16. 16.2/3 + 3/5 =
  17. 17.4/7 − 6/12 =
  18. 18.1/4 + 5/11 =
  19. 19.7/8 + 1/3 =
  20. 20.1/2 + 4/7 =
  21. 21.2/3 − 1/2 =
  22. 22.5/9 − 2/9 =
  23. 23.1/11 + 3/9 =
  24. 24.1/2 + 3/7 =
  25. 25.9/11 + 4/9 =
  26. 26.3/12 + 1/2 =
  27. 27.2/10 + 4/5 =
  28. 28.1/3 + 1/3 =
  29. 29.2/5 + 3/4 =
  30. 30.1/5 + 4/12 =
  31. 31.2/7 + 3/7 =
  32. 32.1/2 − 2/9 =
  33. 33.1/7 + 1/4 =
  34. 34.1/6 − 1/12 =
  35. 35.1/3 + 2/9 =
  36. 36.1/4 + 1/2 =
  37. 37.11/12 + 3/6 =
  38. 38.1/3 − 2/8 =
  39. 39.3/4 + 1/11 =
  40. 40.3/5 − 1/2 =

Answer key

  1. 13/20
  2. 1/14
  3. 5/4
  4. 49/66
  5. 1/10
  6. 5/6
  7. 4/21
  8. 29/22
  9. 19/14
  10. 5/8
  11. 1/7
  12. 2/3
  13. 15/77
  14. 41/35
  15. 7/6
  16. 19/15
  17. 1/14
  18. 31/44
  19. 29/24
  20. 15/14
  21. 1/6
  22. 1/3
  23. 14/33
  24. 13/14
  25. 125/99
  26. 3/4
  27. 1
  28. 2/3
  29. 23/20
  30. 8/15
  31. 5/7
  32. 5/18
  33. 11/28
  34. 1/12
  35. 5/9
  36. 3/4
  37. 17/12
  38. 1/12
  39. 37/44
  40. 1/10

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