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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 72 · 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. 1.8/11 + 6/12 =
  2. 2.3/12 + 2/5 =
  3. 3.5/12 + 1/7 =
  4. 4.2/4 + 1/5 =
  5. 5.3/7 + 1/3 =
  6. 6.1/2 − 1/4 =
  7. 7.1/2 + 1/2 =
  8. 8.1/3 − 1/12 =
  9. 9.5/9 − 1/11 =
  10. 10.6/10 − 5/12 =
  11. 11.1/5 + 2/3 =
  12. 12.4/7 + 1/2 =
  13. 13.5/12 + 5/8 =
  14. 14.1/3 + 1/3 =
  15. 15.5/8 − 4/7 =
  16. 16.7/10 + 3/5 =
  17. 17.2/5 + 4/5 =
  18. 18.11/12 − 6/8 =
  19. 19.7/8 + 4/8 =
  20. 20.4/6 + 8/9 =
  21. 21.1/4 + 1/6 =
  22. 22.8/12 + 4/8 =
  23. 23.5/9 − 3/9 =
  24. 24.1/2 + 1/3 =
  25. 25.1/2 + 7/10 =
  26. 26.6/7 − 1/3 =
  27. 27.3/12 + 6/9 =
  28. 28.4/7 + 1/2 =
  29. 29.5/8 + 1/3 =
  30. 30.6/9 − 4/12 =
  31. 31.2/4 − 1/3 =
  32. 32.1/3 − 2/10 =
  33. 33.6/11 + 3/10 =
  34. 34.2/3 − 3/8 =
  35. 35.1/2 + 3/11 =
  36. 36.1/2 − 1/6 =
  37. 37.4/9 − 1/3 =
  38. 38.1/3 + 1/2 =
  39. 39.1/5 + 9/10 =
  40. 40.4/10 + 7/9 =

Answer key

  1. 27/22
  2. 13/20
  3. 47/84
  4. 7/10
  5. 16/21
  6. 1/4
  7. 1
  8. 1/4
  9. 46/99
  10. 11/60
  11. 13/15
  12. 15/14
  13. 25/24
  14. 2/3
  15. 3/56
  16. 13/10
  17. 6/5
  18. 1/6
  19. 11/8
  20. 14/9
  21. 5/12
  22. 7/6
  23. 2/9
  24. 5/6
  25. 6/5
  26. 11/21
  27. 11/12
  28. 15/14
  29. 23/24
  30. 1/3
  31. 1/6
  32. 2/15
  33. 93/110
  34. 7/24
  35. 17/22
  36. 1/3
  37. 1/9
  38. 5/6
  39. 11/10
  40. 53/45

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