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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 941 · 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 − 2/3 =
  2. 2.7/8 + 1/2 =
  3. 3.2/4 − 1/4 =
  4. 4.1/4 + 3/11 =
  5. 5.6/8 + 1/2 =
  6. 6.7/10 − 6/12 =
  7. 7.2/3 + 1/8 =
  8. 8.1/3 − 2/7 =
  9. 9.2/6 + 1/7 =
  10. 10.6/8 + 6/12 =
  11. 11.3/4 + 2/11 =
  12. 12.6/9 − 1/4 =
  13. 13.1/2 + 1/2 =
  14. 14.8/11 − 1/3 =
  15. 15.7/9 + 2/7 =
  16. 16.11/12 + 2/6 =
  17. 17.4/5 + 3/4 =
  18. 18.1/4 + 2/3 =
  19. 19.1/12 + 2/12 =
  20. 20.6/7 + 2/3 =
  21. 21.3/4 − 3/7 =
  22. 22.3/5 − 1/2 =
  23. 23.1/2 − 4/10 =
  24. 24.1/3 − 1/4 =
  25. 25.5/9 + 8/12 =
  26. 26.2/5 + 2/9 =
  27. 27.3/9 + 1/6 =
  28. 28.4/5 − 2/3 =
  29. 29.1/4 + 2/4 =
  30. 30.6/11 + 8/10 =
  31. 31.2/9 + 1/12 =
  32. 32.3/5 − 1/11 =
  33. 33.3/4 − 2/4 =
  34. 34.10/12 − 3/5 =
  35. 35.4/5 + 3/4 =
  36. 36.2/3 − 4/10 =
  37. 37.3/6 − 1/9 =
  38. 38.9/11 − 3/6 =
  39. 39.3/6 + 3/9 =
  40. 40.6/12 + 2/4 =

Answer key

  1. 2/15
  2. 11/8
  3. 1/4
  4. 23/44
  5. 5/4
  6. 1/5
  7. 19/24
  8. 1/21
  9. 10/21
  10. 5/4
  11. 41/44
  12. 5/12
  13. 1
  14. 13/33
  15. 67/63
  16. 5/4
  17. 31/20
  18. 11/12
  19. 1/4
  20. 32/21
  21. 9/28
  22. 1/10
  23. 1/10
  24. 1/12
  25. 11/9
  26. 28/45
  27. 1/2
  28. 2/15
  29. 3/4
  30. 74/55
  31. 11/36
  32. 28/55
  33. 1/4
  34. 7/30
  35. 31/20
  36. 4/15
  37. 7/18
  38. 7/22
  39. 5/6
  40. 1

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