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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 661 · 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 − 3/7 =
  2. 2.2/4 − 1/11 =
  3. 3.5/9 − 2/5 =
  4. 4.3/12 − 1/5 =
  5. 5.9/11 − 1/4 =
  6. 6.4/11 + 3/9 =
  7. 7.2/3 + 10/11 =
  8. 8.2/9 − 1/8 =
  9. 9.3/10 + 6/7 =
  10. 10.6/10 + 2/3 =
  11. 11.6/7 + 1/9 =
  12. 12.8/12 − 2/9 =
  13. 13.3/4 + 2/4 =
  14. 14.3/5 + 3/5 =
  15. 15.9/11 − 6/9 =
  16. 16.2/3 + 4/5 =
  17. 17.4/7 − 3/6 =
  18. 18.1/2 + 2/7 =
  19. 19.1/8 + 2/4 =
  20. 20.6/7 − 6/11 =
  21. 21.2/12 − 1/10 =
  22. 22.3/5 + 1/2 =
  23. 23.4/12 + 4/8 =
  24. 24.4/11 − 1/4 =
  25. 25.5/6 + 6/8 =
  26. 26.3/7 − 2/5 =
  27. 27.1/2 + 4/8 =
  28. 28.6/11 + 6/11 =
  29. 29.4/6 + 2/4 =
  30. 30.3/4 − 3/5 =
  31. 31.8/11 − 4/9 =
  32. 32.7/10 + 1/4 =
  33. 33.9/12 − 3/5 =
  34. 34.2/7 + 5/7 =
  35. 35.1/4 + 1/5 =
  36. 36.1/2 + 4/10 =
  37. 37.7/9 − 6/9 =
  38. 38.5/12 + 1/5 =
  39. 39.3/5 − 1/2 =
  40. 40.5/11 + 1/2 =

Answer key

  1. 9/28
  2. 9/22
  3. 7/45
  4. 1/20
  5. 25/44
  6. 23/33
  7. 52/33
  8. 7/72
  9. 81/70
  10. 19/15
  11. 61/63
  12. 4/9
  13. 5/4
  14. 6/5
  15. 5/33
  16. 22/15
  17. 1/14
  18. 11/14
  19. 5/8
  20. 24/77
  21. 1/15
  22. 11/10
  23. 5/6
  24. 5/44
  25. 19/12
  26. 1/35
  27. 1
  28. 12/11
  29. 7/6
  30. 3/20
  31. 28/99
  32. 19/20
  33. 3/20
  34. 1
  35. 9/20
  36. 9/10
  37. 1/9
  38. 37/60
  39. 1/10
  40. 21/22

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