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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 292 · 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. 1.4/10 + 3/12 =
  2. 2.2/7 − 3/12 =
  3. 3.2/12 + 1/2 =
  4. 4.5/7 + 2/6 =
  5. 5.1/9 + 5/9 =
  6. 6.6/7 − 1/5 =
  7. 7.3/12 + 4/8 =
  8. 8.1/11 + 1/4 =
  9. 9.2/7 + 2/9 =
  10. 10.8/9 − 2/3 =
  11. 11.11/12 − 2/7 =
  12. 12.5/7 + 2/9 =
  13. 13.2/12 + 3/6 =
  14. 14.5/6 + 10/12 =
  15. 15.9/12 + 2/9 =
  16. 16.1/3 − 1/9 =
  17. 17.2/10 + 11/12 =
  18. 18.1/3 + 2/3 =
  19. 19.1/2 + 10/12 =
  20. 20.1/4 + 5/10 =
  21. 21.1/2 − 1/4 =
  22. 22.9/10 + 5/6 =
  23. 23.2/3 + 1/2 =
  24. 24.3/4 − 2/7 =
  25. 25.1/3 + 1/5 =
  26. 26.5/7 − 3/12 =
  27. 27.1/2 + 1/7 =
  28. 28.1/2 + 7/12 =
  29. 29.3/4 + 2/4 =
  30. 30.10/12 − 2/5 =
  31. 31.6/8 + 1/2 =
  32. 32.1/4 + 4/7 =
  33. 33.1/2 + 4/10 =
  34. 34.9/10 + 5/12 =
  35. 35.1/3 + 2/3 =
  36. 36.1/4 + 2/3 =
  37. 37.7/12 + 2/10 =
  38. 38.7/8 + 4/6 =
  39. 39.2/7 + 5/12 =
  40. 40.4/7 − 2/5 =

Answer key

  1. 13/20
  2. 1/28
  3. 2/3
  4. 22/21
  5. 2/3
  6. 23/35
  7. 3/4
  8. 15/44
  9. 32/63
  10. 2/9
  11. 53/84
  12. 59/63
  13. 2/3
  14. 5/3
  15. 35/36
  16. 2/9
  17. 67/60
  18. 1
  19. 4/3
  20. 3/4
  21. 1/4
  22. 26/15
  23. 7/6
  24. 13/28
  25. 8/15
  26. 13/28
  27. 9/14
  28. 13/12
  29. 5/4
  30. 13/30
  31. 5/4
  32. 23/28
  33. 9/10
  34. 79/60
  35. 1
  36. 11/12
  37. 47/60
  38. 37/24
  39. 59/84
  40. 6/35

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