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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 429 · 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. 1.4/7 − 2/4 =
  2. 2.4/5 − 2/12 =
  3. 3.4/12 + 3/6 =
  4. 4.5/9 + 4/6 =
  5. 5.4/5 + 3/10 =
  6. 6.4/6 + 1/2 =
  7. 7.2/4 − 1/3 =
  8. 8.2/9 + 7/12 =
  9. 9.4/5 − 3/12 =
  10. 10.4/6 − 1/2 =
  11. 11.2/8 + 6/10 =
  12. 12.1/4 + 2/12 =
  13. 13.2/3 + 1/2 =
  14. 14.1/5 + 1/10 =
  15. 15.4/5 − 1/2 =
  16. 16.1/4 + 3/9 =
  17. 17.3/7 + 7/10 =
  18. 18.1/2 − 1/7 =
  19. 19.1/2 + 1/4 =
  20. 20.8/11 + 7/9 =
  21. 21.2/3 − 1/2 =
  22. 22.3/4 − 3/6 =
  23. 23.6/7 + 5/7 =
  24. 24.6/10 − 3/6 =
  25. 25.3/9 − 3/12 =
  26. 26.5/11 + 3/6 =
  27. 27.5/6 − 3/10 =
  28. 28.4/9 − 3/11 =
  29. 29.1/2 + 1/5 =
  30. 30.5/6 + 5/12 =
  31. 31.2/3 − 1/4 =
  32. 32.2/7 + 1/2 =
  33. 33.4/5 + 3/7 =
  34. 34.2/3 + 1/2 =
  35. 35.10/11 − 3/8 =
  36. 36.4/6 + 8/9 =
  37. 37.2/3 + 4/7 =
  38. 38.2/10 + 1/2 =
  39. 39.1/3 − 1/11 =
  40. 40.5/7 + 3/5 =

Answer key

  1. 1/14
  2. 19/30
  3. 5/6
  4. 11/9
  5. 11/10
  6. 7/6
  7. 1/6
  8. 29/36
  9. 11/20
  10. 1/6
  11. 17/20
  12. 5/12
  13. 7/6
  14. 3/10
  15. 3/10
  16. 7/12
  17. 79/70
  18. 5/14
  19. 3/4
  20. 149/99
  21. 1/6
  22. 1/4
  23. 11/7
  24. 1/10
  25. 1/12
  26. 21/22
  27. 8/15
  28. 17/99
  29. 7/10
  30. 5/4
  31. 5/12
  32. 11/14
  33. 43/35
  34. 7/6
  35. 47/88
  36. 14/9
  37. 26/21
  38. 7/10
  39. 8/33
  40. 46/35

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