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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 349 · 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. 1.6/8 + 1/3 =
  2. 2.2/5 + 2/9 =
  3. 3.1/4 + 3/6 =
  4. 4.2/9 + 1/4 =
  5. 5.1/3 − 1/8 =
  6. 6.1/6 + 4/5 =
  7. 7.1/5 + 3/7 =
  8. 8.1/5 + 1/2 =
  9. 9.1/3 + 8/9 =
  10. 10.7/11 + 2/10 =
  11. 11.4/5 + 2/3 =
  12. 12.4/8 − 2/8 =
  13. 13.2/7 − 1/5 =
  14. 14.3/5 − 1/2 =
  15. 15.2/6 − 1/4 =
  16. 16.4/9 + 2/3 =
  17. 17.3/6 + 2/3 =
  18. 18.4/5 − 8/12 =
  19. 19.11/12 + 1/7 =
  20. 20.7/11 + 4/9 =
  21. 21.1/2 − 1/5 =
  22. 22.10/11 − 4/5 =
  23. 23.3/4 − 1/3 =
  24. 24.2/6 + 1/2 =
  25. 25.3/4 + 7/10 =
  26. 26.10/11 + 3/6 =
  27. 27.5/12 − 1/3 =
  28. 28.1/4 + 8/11 =
  29. 29.6/7 + 4/9 =
  30. 30.4/10 + 3/6 =
  31. 31.1/4 + 3/11 =
  32. 32.7/9 − 2/6 =
  33. 33.5/12 − 3/10 =
  34. 34.5/6 + 6/12 =
  35. 35.10/11 + 5/9 =
  36. 36.2/8 + 6/9 =
  37. 37.1/3 − 2/10 =
  38. 38.2/3 − 1/5 =
  39. 39.4/5 − 1/2 =
  40. 40.1/2 + 2/9 =

Answer key

  1. 13/12
  2. 28/45
  3. 3/4
  4. 17/36
  5. 5/24
  6. 29/30
  7. 22/35
  8. 7/10
  9. 11/9
  10. 46/55
  11. 22/15
  12. 1/4
  13. 3/35
  14. 1/10
  15. 1/12
  16. 10/9
  17. 7/6
  18. 2/15
  19. 89/84
  20. 107/99
  21. 3/10
  22. 6/55
  23. 5/12
  24. 5/6
  25. 29/20
  26. 31/22
  27. 1/12
  28. 43/44
  29. 82/63
  30. 9/10
  31. 23/44
  32. 4/9
  33. 7/60
  34. 4/3
  35. 145/99
  36. 11/12
  37. 2/15
  38. 7/15
  39. 3/10
  40. 13/18

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