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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 358 · 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. 1.6/8 + 2/3 =
  2. 2.4/6 + 1/3 =
  3. 3.10/12 − 4/10 =
  4. 4.1/2 + 3/9 =
  5. 5.6/10 + 4/5 =
  6. 6.4/5 + 7/11 =
  7. 7.9/11 + 1/4 =
  8. 8.8/10 − 2/3 =
  9. 9.8/11 + 3/4 =
  10. 10.3/7 + 3/11 =
  11. 11.1/6 − 1/7 =
  12. 12.1/2 − 2/6 =
  13. 13.9/11 + 3/7 =
  14. 14.1/2 + 8/12 =
  15. 15.1/3 + 2/3 =
  16. 16.5/9 − 5/12 =
  17. 17.1/4 + 4/7 =
  18. 18.5/6 + 3/5 =
  19. 19.2/5 − 3/11 =
  20. 20.5/7 − 3/11 =
  21. 21.1/3 + 2/11 =
  22. 22.8/9 + 2/5 =
  23. 23.6/7 + 1/2 =
  24. 24.2/9 − 1/8 =
  25. 25.2/11 + 3/9 =
  26. 26.2/4 + 4/12 =
  27. 27.2/3 + 3/12 =
  28. 28.2/6 + 7/9 =
  29. 29.3/6 + 1/4 =
  30. 30.1/6 + 1/2 =
  31. 31.2/3 − 1/11 =
  32. 32.2/6 + 4/5 =
  33. 33.2/5 + 2/4 =
  34. 34.3/5 + 4/9 =
  35. 35.5/9 + 10/11 =
  36. 36.2/4 + 4/8 =
  37. 37.7/10 − 1/3 =
  38. 38.3/7 + 2/4 =
  39. 39.3/9 − 3/11 =
  40. 40.1/3 + 1/4 =

Answer key

  1. 17/12
  2. 1
  3. 13/30
  4. 5/6
  5. 7/5
  6. 79/55
  7. 47/44
  8. 2/15
  9. 65/44
  10. 54/77
  11. 1/42
  12. 1/6
  13. 96/77
  14. 7/6
  15. 1
  16. 5/36
  17. 23/28
  18. 43/30
  19. 7/55
  20. 34/77
  21. 17/33
  22. 58/45
  23. 19/14
  24. 7/72
  25. 17/33
  26. 5/6
  27. 11/12
  28. 10/9
  29. 3/4
  30. 2/3
  31. 19/33
  32. 17/15
  33. 9/10
  34. 47/45
  35. 145/99
  36. 1
  37. 11/30
  38. 13/14
  39. 2/33
  40. 7/12

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