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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 720 · 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 + 5/9 =
  2. 2.6/11 + 6/7 =
  3. 3.2/5 + 2/3 =
  4. 4.6/11 + 4/8 =
  5. 5.3/4 + 3/9 =
  6. 6.9/12 + 2/5 =
  7. 7.3/6 − 1/7 =
  8. 8.3/10 + 9/12 =
  9. 9.1/2 + 4/5 =
  10. 10.5/7 + 5/8 =
  11. 11.3/4 − 4/7 =
  12. 12.5/11 + 1/7 =
  13. 13.3/4 + 3/4 =
  14. 14.6/10 − 7/12 =
  15. 15.2/6 + 3/6 =
  16. 16.1/2 + 1/3 =
  17. 17.3/6 − 1/3 =
  18. 18.4/8 + 2/12 =
  19. 19.8/9 + 1/3 =
  20. 20.1/3 + 4/9 =
  21. 21.6/8 + 1/2 =
  22. 22.2/4 − 1/3 =
  23. 23.4/8 + 1/12 =
  24. 24.1/7 + 2/4 =
  25. 25.5/8 − 1/6 =
  26. 26.2/3 − 2/11 =
  27. 27.7/11 + 7/9 =
  28. 28.1/2 + 1/2 =
  29. 29.6/12 − 3/10 =
  30. 30.6/8 + 1/8 =
  31. 31.4/5 − 1/4 =
  32. 32.6/7 − 2/5 =
  33. 33.1/7 + 2/3 =
  34. 34.2/6 + 4/12 =
  35. 35.2/3 + 2/7 =
  36. 36.4/11 + 2/4 =
  37. 37.11/12 + 5/10 =
  38. 38.6/8 + 3/4 =
  39. 39.9/12 + 7/12 =
  40. 40.6/8 − 1/2 =

Answer key

  1. 19/18
  2. 108/77
  3. 16/15
  4. 23/22
  5. 13/12
  6. 23/20
  7. 5/14
  8. 21/20
  9. 13/10
  10. 75/56
  11. 5/28
  12. 46/77
  13. 3/2
  14. 1/60
  15. 5/6
  16. 5/6
  17. 1/6
  18. 2/3
  19. 11/9
  20. 7/9
  21. 5/4
  22. 1/6
  23. 7/12
  24. 9/14
  25. 11/24
  26. 16/33
  27. 140/99
  28. 1
  29. 1/5
  30. 7/8
  31. 11/20
  32. 16/35
  33. 17/21
  34. 2/3
  35. 20/21
  36. 19/22
  37. 17/12
  38. 3/2
  39. 4/3
  40. 1/4

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