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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 307 · 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. 1.3/4 − 1/12 =
  2. 2.1/3 + 7/8 =
  3. 3.1/2 − 3/9 =
  4. 4.6/8 + 6/7 =
  5. 5.5/7 − 1/5 =
  6. 6.6/7 − 1/3 =
  7. 7.2/3 + 3/12 =
  8. 8.7/9 + 1/2 =
  9. 9.1/7 + 1/2 =
  10. 10.3/4 − 4/6 =
  11. 11.8/12 + 1/2 =
  12. 12.6/12 + 1/4 =
  13. 13.5/9 + 1/3 =
  14. 14.1/11 + 5/10 =
  15. 15.1/6 + 3/6 =
  16. 16.3/4 + 5/8 =
  17. 17.3/4 − 1/2 =
  18. 18.2/3 − 1/7 =
  19. 19.2/9 + 1/7 =
  20. 20.8/10 + 1/5 =
  21. 21.1/5 + 1/4 =
  22. 22.9/10 − 4/11 =
  23. 23.3/4 + 2/6 =
  24. 24.1/3 + 1/4 =
  25. 25.2/5 − 2/11 =
  26. 26.2/3 − 2/4 =
  27. 27.8/9 − 2/4 =
  28. 28.5/8 + 1/4 =
  29. 29.1/5 + 8/9 =
  30. 30.6/7 + 6/7 =
  31. 31.5/11 + 6/7 =
  32. 32.2/9 − 1/11 =
  33. 33.1/4 − 1/10 =
  34. 34.1/9 + 1/3 =
  35. 35.2/4 − 2/5 =
  36. 36.8/11 − 2/11 =
  37. 37.2/3 + 3/4 =
  38. 38.5/11 + 2/3 =
  39. 39.6/9 − 1/4 =
  40. 40.3/5 − 2/4 =

Answer key

  1. 2/3
  2. 29/24
  3. 1/6
  4. 45/28
  5. 18/35
  6. 11/21
  7. 11/12
  8. 23/18
  9. 9/14
  10. 1/12
  11. 7/6
  12. 3/4
  13. 8/9
  14. 13/22
  15. 2/3
  16. 11/8
  17. 1/4
  18. 11/21
  19. 23/63
  20. 1
  21. 9/20
  22. 59/110
  23. 13/12
  24. 7/12
  25. 12/55
  26. 1/6
  27. 7/18
  28. 7/8
  29. 49/45
  30. 12/7
  31. 101/77
  32. 13/99
  33. 3/20
  34. 4/9
  35. 1/10
  36. 6/11
  37. 17/12
  38. 37/33
  39. 5/12
  40. 1/10

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