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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 282 · 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. 1.3/11 + 1/12 =
  2. 2.7/10 − 4/8 =
  3. 3.2/4 − 1/3 =
  4. 4.7/10 + 4/5 =
  5. 5.3/10 + 1/2 =
  6. 6.1/10 + 1/2 =
  7. 7.1/3 − 1/4 =
  8. 8.2/3 − 1/4 =
  9. 9.3/4 − 1/12 =
  10. 10.3/4 + 7/12 =
  11. 11.2/10 + 2/3 =
  12. 12.5/8 + 2/3 =
  13. 13.2/3 + 6/10 =
  14. 14.4/9 − 1/12 =
  15. 15.2/9 + 5/12 =
  16. 16.2/3 + 4/5 =
  17. 17.6/10 + 2/3 =
  18. 18.5/6 + 1/2 =
  19. 19.8/11 − 2/3 =
  20. 20.7/8 + 1/2 =
  21. 21.3/6 + 3/5 =
  22. 22.7/12 + 1/3 =
  23. 23.4/5 − 1/11 =
  24. 24.1/7 + 2/9 =
  25. 25.1/2 + 1/5 =
  26. 26.2/10 + 7/9 =
  27. 27.1/6 + 7/10 =
  28. 28.1/2 + 3/5 =
  29. 29.2/5 + 4/7 =
  30. 30.3/5 + 1/10 =
  31. 31.6/7 + 2/4 =
  32. 32.1/2 − 2/11 =
  33. 33.3/10 + 3/5 =
  34. 34.6/10 + 1/2 =
  35. 35.4/6 + 1/6 =
  36. 36.2/6 − 1/11 =
  37. 37.3/7 + 8/10 =
  38. 38.1/8 + 1/3 =
  39. 39.3/6 − 1/7 =
  40. 40.1/12 + 5/6 =

Answer key

  1. 47/132
  2. 1/5
  3. 1/6
  4. 3/2
  5. 4/5
  6. 3/5
  7. 1/12
  8. 5/12
  9. 2/3
  10. 4/3
  11. 13/15
  12. 31/24
  13. 19/15
  14. 13/36
  15. 23/36
  16. 22/15
  17. 19/15
  18. 4/3
  19. 2/33
  20. 11/8
  21. 11/10
  22. 11/12
  23. 39/55
  24. 23/63
  25. 7/10
  26. 44/45
  27. 13/15
  28. 11/10
  29. 34/35
  30. 7/10
  31. 19/14
  32. 7/22
  33. 9/10
  34. 11/10
  35. 5/6
  36. 8/33
  37. 43/35
  38. 11/24
  39. 5/14
  40. 11/12

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