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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 565 · 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. 2.10/11 − 1/4 =
  3. 3.2/7 − 1/5 =
  4. 4.1/3 + 1/2 =
  5. 5.3/4 + 9/10 =
  6. 6.2/9 + 1/2 =
  7. 7.2/3 + 4/12 =
  8. 8.1/4 + 3/4 =
  9. 9.2/5 − 1/3 =
  10. 10.1/6 + 1/2 =
  11. 11.1/3 + 3/12 =
  12. 12.1/8 + 3/8 =
  13. 13.1/5 + 8/9 =
  14. 14.6/7 − 1/3 =
  15. 15.7/12 + 6/12 =
  16. 16.1/4 + 2/3 =
  17. 17.2/12 + 4/11 =
  18. 18.1/2 + 8/10 =
  19. 19.4/7 + 8/11 =
  20. 20.3/5 + 1/4 =
  21. 21.7/9 + 6/7 =
  22. 22.4/10 + 4/6 =
  23. 23.6/10 − 1/10 =
  24. 24.2/4 + 1/5 =
  25. 25.2/3 + 1/3 =
  26. 26.4/5 − 1/5 =
  27. 27.4/12 + 1/4 =
  28. 28.1/4 + 7/8 =
  29. 29.2/4 + 8/11 =
  30. 30.3/8 − 1/3 =
  31. 31.1/7 + 1/3 =
  32. 32.1/2 − 1/3 =
  33. 33.3/6 − 4/9 =
  34. 34.1/2 + 7/12 =
  35. 35.1/2 − 2/11 =
  36. 36.10/11 + 2/11 =
  37. 37.6/9 + 1/12 =
  38. 38.9/12 − 2/3 =
  39. 39.2/5 + 8/11 =
  40. 40.2/5 − 1/3 =

Answer key

  1. 1/6
  2. 29/44
  3. 3/35
  4. 5/6
  5. 33/20
  6. 13/18
  7. 1
  8. 1
  9. 1/15
  10. 2/3
  11. 7/12
  12. 1/2
  13. 49/45
  14. 11/21
  15. 13/12
  16. 11/12
  17. 35/66
  18. 13/10
  19. 100/77
  20. 17/20
  21. 103/63
  22. 16/15
  23. 1/2
  24. 7/10
  25. 1
  26. 3/5
  27. 7/12
  28. 9/8
  29. 27/22
  30. 1/24
  31. 10/21
  32. 1/6
  33. 1/18
  34. 13/12
  35. 7/22
  36. 12/11
  37. 3/4
  38. 1/12
  39. 62/55
  40. 1/15

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