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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 709 · 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. 1.6/10 + 3/4 =
  2. 2.3/4 + 3/5 =
  3. 3.5/10 + 3/5 =
  4. 4.2/5 + 1/3 =
  5. 5.6/11 − 1/6 =
  6. 6.1/3 − 2/8 =
  7. 7.1/4 + 1/9 =
  8. 8.3/10 + 4/9 =
  9. 9.9/10 − 8/10 =
  10. 10.3/10 + 6/7 =
  11. 11.3/4 + 9/10 =
  12. 12.1/2 + 2/3 =
  13. 13.4/7 + 1/4 =
  14. 14.5/6 − 1/3 =
  15. 15.8/11 + 9/10 =
  16. 16.1/4 + 1/3 =
  17. 17.4/11 + 9/10 =
  18. 18.2/4 − 1/6 =
  19. 19.4/7 − 4/10 =
  20. 20.8/10 − 3/11 =
  21. 21.1/2 + 5/6 =
  22. 22.8/9 + 3/9 =
  23. 23.4/11 + 2/12 =
  24. 24.2/12 + 2/3 =
  25. 25.4/7 − 1/7 =
  26. 26.1/2 − 1/3 =
  27. 27.1/7 + 3/9 =
  28. 28.3/6 + 4/10 =
  29. 29.1/3 + 1/2 =
  30. 30.1/2 + 2/3 =
  31. 31.4/6 + 4/8 =
  32. 32.5/12 + 3/4 =
  33. 33.4/6 + 3/7 =
  34. 34.5/6 + 4/9 =
  35. 35.4/9 − 1/10 =
  36. 36.3/5 − 1/2 =
  37. 37.3/11 − 1/5 =
  38. 38.6/7 + 2/3 =
  39. 39.1/5 + 10/11 =
  40. 40.1/5 + 10/12 =

Answer key

  1. 27/20
  2. 27/20
  3. 11/10
  4. 11/15
  5. 25/66
  6. 1/12
  7. 13/36
  8. 67/90
  9. 1/10
  10. 81/70
  11. 33/20
  12. 7/6
  13. 23/28
  14. 1/2
  15. 179/110
  16. 7/12
  17. 139/110
  18. 1/3
  19. 6/35
  20. 29/55
  21. 4/3
  22. 11/9
  23. 35/66
  24. 5/6
  25. 3/7
  26. 1/6
  27. 10/21
  28. 9/10
  29. 5/6
  30. 7/6
  31. 7/6
  32. 7/6
  33. 23/21
  34. 23/18
  35. 31/90
  36. 1/10
  37. 4/55
  38. 32/21
  39. 61/55
  40. 31/30

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