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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 846 · 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. 1.2/3 + 9/10 =
  2. 2.3/4 − 7/10 =
  3. 3.4/12 + 2/6 =
  4. 4.5/9 − 4/9 =
  5. 5.8/12 + 6/9 =
  6. 6.1/3 + 4/9 =
  7. 7.2/4 + 2/4 =
  8. 8.4/8 + 5/6 =
  9. 9.3/12 + 3/5 =
  10. 10.3/11 + 6/7 =
  11. 11.1/4 + 1/7 =
  12. 12.4/6 + 11/12 =
  13. 13.2/4 + 3/11 =
  14. 14.1/2 + 5/7 =
  15. 15.4/5 + 1/2 =
  16. 16.1/7 + 5/10 =
  17. 17.4/11 − 4/12 =
  18. 18.2/4 − 3/9 =
  19. 19.5/8 + 6/7 =
  20. 20.1/8 + 6/7 =
  21. 21.5/7 − 1/4 =
  22. 22.11/12 − 4/6 =
  23. 23.1/6 − 1/10 =
  24. 24.1/2 − 1/5 =
  25. 25.8/10 + 1/2 =
  26. 26.1/2 + 3/8 =
  27. 27.1/3 − 1/7 =
  28. 28.2/9 + 7/12 =
  29. 29.3/10 + 4/6 =
  30. 30.6/12 − 1/8 =
  31. 31.2/3 − 1/7 =
  32. 32.9/11 − 9/12 =
  33. 33.8/10 − 4/8 =
  34. 34.2/9 + 9/11 =
  35. 35.4/6 + 4/8 =
  36. 36.3/4 + 3/5 =
  37. 37.2/5 + 1/4 =
  38. 38.3/10 + 1/6 =
  39. 39.6/12 − 5/12 =
  40. 40.2/3 − 1/2 =

Answer key

  1. 47/30
  2. 1/20
  3. 2/3
  4. 1/9
  5. 4/3
  6. 7/9
  7. 1
  8. 4/3
  9. 17/20
  10. 87/77
  11. 11/28
  12. 19/12
  13. 17/22
  14. 17/14
  15. 13/10
  16. 9/14
  17. 1/33
  18. 1/6
  19. 83/56
  20. 55/56
  21. 13/28
  22. 1/4
  23. 1/15
  24. 3/10
  25. 13/10
  26. 7/8
  27. 4/21
  28. 29/36
  29. 29/30
  30. 3/8
  31. 11/21
  32. 3/44
  33. 3/10
  34. 103/99
  35. 7/6
  36. 27/20
  37. 13/20
  38. 7/15
  39. 1/12
  40. 1/6

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