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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 920 · 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. 1.2/3 + 5/7 =
  2. 2.5/9 + 1/7 =
  3. 3.4/5 + 3/10 =
  4. 4.3/5 − 2/5 =
  5. 5.1/2 − 2/10 =
  6. 6.2/12 + 2/12 =
  7. 7.6/7 − 2/4 =
  8. 8.4/6 + 1/2 =
  9. 9.4/12 + 3/4 =
  10. 10.4/9 + 2/8 =
  11. 11.1/8 + 7/12 =
  12. 12.7/10 − 3/11 =
  13. 13.1/2 + 2/4 =
  14. 14.3/12 + 1/9 =
  15. 15.6/9 − 2/9 =
  16. 16.4/5 − 1/3 =
  17. 17.8/12 − 1/2 =
  18. 18.1/8 + 9/11 =
  19. 19.2/3 − 3/12 =
  20. 20.1/4 + 2/3 =
  21. 21.1/2 − 5/11 =
  22. 22.10/12 − 2/4 =
  23. 23.5/8 + 3/6 =
  24. 24.1/3 + 1/4 =
  25. 25.1/6 + 7/9 =
  26. 26.6/9 + 3/10 =
  27. 27.4/6 − 1/5 =
  28. 28.6/7 + 2/4 =
  29. 29.9/11 − 3/12 =
  30. 30.11/12 + 1/3 =
  31. 31.3/4 + 1/2 =
  32. 32.2/6 + 5/6 =
  33. 33.8/9 − 1/2 =
  34. 34.7/12 − 2/6 =
  35. 35.6/7 − 8/11 =
  36. 36.7/8 + 1/3 =
  37. 37.9/12 − 8/11 =
  38. 38.1/3 − 1/9 =
  39. 39.2/5 + 5/11 =
  40. 40.1/3 − 1/10 =

Answer key

  1. 29/21
  2. 44/63
  3. 11/10
  4. 1/5
  5. 3/10
  6. 1/3
  7. 5/14
  8. 7/6
  9. 13/12
  10. 25/36
  11. 17/24
  12. 47/110
  13. 1
  14. 13/36
  15. 4/9
  16. 7/15
  17. 1/6
  18. 83/88
  19. 5/12
  20. 11/12
  21. 1/22
  22. 1/3
  23. 9/8
  24. 7/12
  25. 17/18
  26. 29/30
  27. 7/15
  28. 19/14
  29. 25/44
  30. 5/4
  31. 5/4
  32. 7/6
  33. 7/18
  34. 1/4
  35. 10/77
  36. 29/24
  37. 1/44
  38. 2/9
  39. 47/55
  40. 7/30

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