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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 403 · 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. 1.7/8 − 3/10 =
  2. 2.5/11 − 1/4 =
  3. 3.3/5 + 2/12 =
  4. 4.1/3 − 1/10 =
  5. 5.1/2 + 9/12 =
  6. 6.2/4 + 2/3 =
  7. 7.3/5 + 3/5 =
  8. 8.8/10 + 2/3 =
  9. 9.4/5 − 1/6 =
  10. 10.5/6 − 1/3 =
  11. 11.5/12 + 1/7 =
  12. 12.2/5 + 4/5 =
  13. 13.2/8 + 3/5 =
  14. 14.1/2 + 1/2 =
  15. 15.7/8 + 2/7 =
  16. 16.4/6 − 4/9 =
  17. 17.1/2 − 1/7 =
  18. 18.10/12 + 2/9 =
  19. 19.3/8 + 1/2 =
  20. 20.4/11 + 3/5 =
  21. 21.3/10 + 2/3 =
  22. 22.1/7 + 1/7 =
  23. 23.5/8 + 2/6 =
  24. 24.7/8 − 3/4 =
  25. 25.1/3 + 1/8 =
  26. 26.1/10 + 1/3 =
  27. 27.7/9 + 1/11 =
  28. 28.2/10 + 4/11 =
  29. 29.1/2 − 1/12 =
  30. 30.2/5 + 4/7 =
  31. 31.4/5 − 1/2 =
  32. 32.6/11 − 3/6 =
  33. 33.4/11 + 2/9 =
  34. 34.4/9 + 6/10 =
  35. 35.3/6 + 3/10 =
  36. 36.1/7 + 2/3 =
  37. 37.4/7 − 2/6 =
  38. 38.8/9 + 1/6 =
  39. 39.3/4 + 1/12 =
  40. 40.4/7 + 6/7 =

Answer key

  1. 23/40
  2. 9/44
  3. 23/30
  4. 7/30
  5. 5/4
  6. 7/6
  7. 6/5
  8. 22/15
  9. 19/30
  10. 1/2
  11. 47/84
  12. 6/5
  13. 17/20
  14. 1
  15. 65/56
  16. 2/9
  17. 5/14
  18. 19/18
  19. 7/8
  20. 53/55
  21. 29/30
  22. 2/7
  23. 23/24
  24. 1/8
  25. 11/24
  26. 13/30
  27. 86/99
  28. 31/55
  29. 5/12
  30. 34/35
  31. 3/10
  32. 1/22
  33. 58/99
  34. 47/45
  35. 4/5
  36. 17/21
  37. 5/21
  38. 19/18
  39. 5/6
  40. 10/7

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