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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 420 · 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. 1.1/2 + 1/2 =
  2. 2.1/2 − 4/10 =
  3. 3.4/5 + 1/4 =
  4. 4.2/3 − 1/5 =
  5. 5.5/11 + 7/11 =
  6. 6.2/5 + 1/2 =
  7. 7.10/12 + 1/3 =
  8. 8.6/8 − 1/4 =
  9. 9.6/9 + 7/9 =
  10. 10.7/10 − 2/5 =
  11. 11.3/4 − 2/3 =
  12. 12.1/2 + 2/11 =
  13. 13.7/9 − 5/11 =
  14. 14.1/7 + 5/11 =
  15. 15.5/11 + 3/6 =
  16. 16.1/4 + 8/10 =
  17. 17.2/7 + 1/2 =
  18. 18.2/3 + 3/6 =
  19. 19.1/10 + 7/12 =
  20. 20.1/2 − 3/7 =
  21. 21.7/10 + 1/3 =
  22. 22.7/9 + 2/5 =
  23. 23.1/4 + 7/8 =
  24. 24.1/11 + 2/10 =
  25. 25.1/3 − 1/4 =
  26. 26.4/5 − 2/9 =
  27. 27.4/7 − 2/4 =
  28. 28.4/9 + 1/2 =
  29. 29.2/5 − 1/3 =
  30. 30.2/10 + 1/2 =
  31. 31.2/8 + 11/12 =
  32. 32.2/3 + 8/12 =
  33. 33.1/2 + 5/7 =
  34. 34.2/7 + 9/11 =
  35. 35.6/9 + 1/4 =
  36. 36.4/8 − 2/9 =
  37. 37.6/12 − 3/7 =
  38. 38.1/2 + 3/4 =
  39. 39.2/7 + 1/4 =
  40. 40.3/11 − 1/5 =

Answer key

  1. 1
  2. 1/10
  3. 21/20
  4. 7/15
  5. 12/11
  6. 9/10
  7. 7/6
  8. 1/2
  9. 13/9
  10. 3/10
  11. 1/12
  12. 15/22
  13. 32/99
  14. 46/77
  15. 21/22
  16. 21/20
  17. 11/14
  18. 7/6
  19. 41/60
  20. 1/14
  21. 31/30
  22. 53/45
  23. 9/8
  24. 16/55
  25. 1/12
  26. 26/45
  27. 1/14
  28. 17/18
  29. 1/15
  30. 7/10
  31. 7/6
  32. 4/3
  33. 17/14
  34. 85/77
  35. 11/12
  36. 5/18
  37. 1/14
  38. 5/4
  39. 15/28
  40. 4/55

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