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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 60 · 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 + 2/3 =
  2. 2.4/7 − 3/8 =
  3. 3.6/7 − 7/12 =
  4. 4.1/3 + 1/9 =
  5. 5.4/10 + 3/10 =
  6. 6.6/8 + 5/7 =
  7. 7.5/8 + 3/4 =
  8. 8.1/3 + 1/2 =
  9. 9.6/10 + 5/8 =
  10. 10.1/3 − 1/7 =
  11. 11.1/11 + 3/5 =
  12. 12.1/11 + 10/12 =
  13. 13.1/4 + 1/4 =
  14. 14.4/6 + 6/7 =
  15. 15.4/6 + 4/11 =
  16. 16.11/12 − 1/2 =
  17. 17.5/11 − 2/8 =
  18. 18.2/6 − 1/6 =
  19. 19.6/12 + 2/7 =
  20. 20.3/6 + 3/5 =
  21. 21.3/4 + 1/3 =
  22. 22.2/6 + 2/8 =
  23. 23.3/10 − 1/6 =
  24. 24.1/4 − 2/9 =
  25. 25.1/7 + 1/8 =
  26. 26.5/9 + 1/2 =
  27. 27.8/12 − 4/7 =
  28. 28.1/5 + 1/3 =
  29. 29.3/4 − 3/9 =
  30. 30.2/6 + 5/6 =
  31. 31.2/4 + 2/3 =
  32. 32.1/3 + 1/2 =
  33. 33.1/6 + 8/11 =
  34. 34.2/3 + 4/6 =
  35. 35.1/7 + 5/7 =
  36. 36.2/3 − 2/5 =
  37. 37.2/9 + 3/5 =
  38. 38.11/12 + 7/12 =
  39. 39.5/11 + 4/5 =
  40. 40.8/12 + 1/2 =

Answer key

  1. 17/12
  2. 11/56
  3. 23/84
  4. 4/9
  5. 7/10
  6. 41/28
  7. 11/8
  8. 5/6
  9. 49/40
  10. 4/21
  11. 38/55
  12. 61/66
  13. 1/2
  14. 32/21
  15. 34/33
  16. 5/12
  17. 9/44
  18. 1/6
  19. 11/14
  20. 11/10
  21. 13/12
  22. 7/12
  23. 2/15
  24. 1/36
  25. 15/56
  26. 19/18
  27. 2/21
  28. 8/15
  29. 5/12
  30. 7/6
  31. 7/6
  32. 5/6
  33. 59/66
  34. 4/3
  35. 6/7
  36. 4/15
  37. 37/45
  38. 3/2
  39. 69/55
  40. 7/6

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