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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 55 · 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. 1.8/10 − 1/5 =
  2. 2.4/5 − 2/4 =
  3. 3.1/4 + 1/4 =
  4. 4.5/8 − 1/2 =
  5. 5.3/4 + 2/4 =
  6. 6.4/8 − 1/4 =
  7. 7.3/7 − 4/11 =
  8. 8.2/5 + 1/4 =
  9. 9.3/8 + 1/4 =
  10. 10.9/11 − 1/2 =
  11. 11.4/8 − 3/10 =
  12. 12.1/2 − 4/11 =
  13. 13.2/9 − 2/12 =
  14. 14.6/11 + 5/11 =
  15. 15.3/7 − 1/8 =
  16. 16.7/9 − 8/11 =
  17. 17.6/10 − 1/2 =
  18. 18.1/5 + 2/10 =
  19. 19.1/6 + 2/3 =
  20. 20.4/7 + 3/6 =
  21. 21.5/7 + 1/8 =
  22. 22.2/4 + 3/6 =
  23. 23.7/12 + 2/12 =
  24. 24.2/9 + 3/4 =
  25. 25.1/5 + 3/8 =
  26. 26.1/5 + 1/3 =
  27. 27.4/5 + 1/3 =
  28. 28.9/10 − 1/3 =
  29. 29.3/8 − 1/3 =
  30. 30.1/3 + 7/10 =
  31. 31.3/7 + 1/4 =
  32. 32.1/2 + 7/10 =
  33. 33.3/10 + 5/7 =
  34. 34.5/10 + 3/7 =
  35. 35.2/4 − 4/12 =
  36. 36.1/6 + 7/8 =
  37. 37.6/8 − 1/6 =
  38. 38.4/8 + 1/7 =
  39. 39.1/2 − 1/7 =
  40. 40.2/4 − 1/3 =

Answer key

  1. 3/5
  2. 3/10
  3. 1/2
  4. 1/8
  5. 5/4
  6. 1/4
  7. 5/77
  8. 13/20
  9. 5/8
  10. 7/22
  11. 1/5
  12. 3/22
  13. 1/18
  14. 1
  15. 17/56
  16. 5/99
  17. 1/10
  18. 2/5
  19. 5/6
  20. 15/14
  21. 47/56
  22. 1
  23. 3/4
  24. 35/36
  25. 23/40
  26. 8/15
  27. 17/15
  28. 17/30
  29. 1/24
  30. 31/30
  31. 19/28
  32. 6/5
  33. 71/70
  34. 13/14
  35. 1/6
  36. 25/24
  37. 7/12
  38. 9/14
  39. 5/14
  40. 1/6

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