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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 162 · 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. 1.1/5 + 1/7 =
  2. 2.9/10 − 9/12 =
  3. 3.2/12 + 1/3 =
  4. 4.3/5 − 4/9 =
  5. 5.5/11 − 2/7 =
  6. 6.9/10 + 6/7 =
  7. 7.3/10 − 1/5 =
  8. 8.1/3 + 1/2 =
  9. 9.1/2 + 7/9 =
  10. 10.6/8 + 2/4 =
  11. 11.6/12 − 1/8 =
  12. 12.2/4 + 3/5 =
  13. 13.4/5 + 2/3 =
  14. 14.2/4 + 2/3 =
  15. 15.2/3 − 1/4 =
  16. 16.3/4 + 6/7 =
  17. 17.2/3 − 1/4 =
  18. 18.3/4 − 2/10 =
  19. 19.1/2 + 6/9 =
  20. 20.4/8 + 3/4 =
  21. 21.6/12 + 1/2 =
  22. 22.3/5 + 1/2 =
  23. 23.1/2 + 1/2 =
  24. 24.3/10 + 4/5 =
  25. 25.3/8 + 1/8 =
  26. 26.6/10 + 1/2 =
  27. 27.3/4 + 5/8 =
  28. 28.1/3 + 4/8 =
  29. 29.2/3 + 1/5 =
  30. 30.1/2 + 5/10 =
  31. 31.1/4 + 5/8 =
  32. 32.2/9 + 1/10 =
  33. 33.1/5 + 3/9 =
  34. 34.1/8 − 1/12 =
  35. 35.1/2 + 7/8 =
  36. 36.6/7 − 3/5 =
  37. 37.1/2 + 1/2 =
  38. 38.3/4 + 3/5 =
  39. 39.1/10 + 1/5 =
  40. 40.3/9 + 4/7 =

Answer key

  1. 12/35
  2. 3/20
  3. 1/2
  4. 7/45
  5. 13/77
  6. 123/70
  7. 1/10
  8. 5/6
  9. 23/18
  10. 5/4
  11. 3/8
  12. 11/10
  13. 22/15
  14. 7/6
  15. 5/12
  16. 45/28
  17. 5/12
  18. 11/20
  19. 7/6
  20. 5/4
  21. 1
  22. 11/10
  23. 1
  24. 11/10
  25. 1/2
  26. 11/10
  27. 11/8
  28. 5/6
  29. 13/15
  30. 1
  31. 7/8
  32. 29/90
  33. 8/15
  34. 1/24
  35. 11/8
  36. 9/35
  37. 1
  38. 27/20
  39. 3/10
  40. 19/21

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