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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 713 · 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. 1.2/4 + 6/7 =
  2. 2.4/5 + 10/11 =
  3. 3.1/10 + 5/6 =
  4. 4.10/11 − 1/2 =
  5. 5.1/3 + 1/11 =
  6. 6.7/10 − 2/3 =
  7. 7.2/11 + 1/6 =
  8. 8.10/11 − 2/7 =
  9. 9.5/7 + 2/12 =
  10. 10.9/10 + 5/9 =
  11. 11.3/10 − 2/7 =
  12. 12.6/11 − 1/9 =
  13. 13.1/3 + 1/7 =
  14. 14.2/5 + 4/9 =
  15. 15.3/6 + 4/5 =
  16. 16.10/12 − 3/4 =
  17. 17.1/2 − 1/8 =
  18. 18.7/8 − 2/9 =
  19. 19.3/9 + 10/11 =
  20. 20.4/9 + 1/6 =
  21. 21.1/2 − 1/9 =
  22. 22.2/5 + 1/5 =
  23. 23.9/10 − 1/9 =
  24. 24.7/12 + 4/12 =
  25. 25.2/12 + 3/12 =
  26. 26.6/9 + 1/10 =
  27. 27.3/7 − 2/10 =
  28. 28.5/8 − 3/5 =
  29. 29.10/12 + 2/3 =
  30. 30.7/10 + 2/12 =
  31. 31.1/3 + 1/4 =
  32. 32.1/4 + 1/8 =
  33. 33.1/12 + 2/3 =
  34. 34.2/8 + 1/2 =
  35. 35.1/6 + 3/8 =
  36. 36.2/4 − 1/9 =
  37. 37.8/11 + 8/10 =
  38. 38.1/6 + 3/5 =
  39. 39.1/9 + 1/2 =
  40. 40.3/6 + 4/9 =

Answer key

  1. 19/14
  2. 94/55
  3. 14/15
  4. 9/22
  5. 14/33
  6. 1/30
  7. 23/66
  8. 48/77
  9. 37/42
  10. 131/90
  11. 1/70
  12. 43/99
  13. 10/21
  14. 38/45
  15. 13/10
  16. 1/12
  17. 3/8
  18. 47/72
  19. 41/33
  20. 11/18
  21. 7/18
  22. 3/5
  23. 71/90
  24. 11/12
  25. 5/12
  26. 23/30
  27. 8/35
  28. 1/40
  29. 3/2
  30. 13/15
  31. 7/12
  32. 3/8
  33. 3/4
  34. 3/4
  35. 13/24
  36. 7/18
  37. 84/55
  38. 23/30
  39. 11/18
  40. 17/18

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