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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 931 · 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. 1.7/9 − 1/2 =
  2. 2.1/3 + 5/8 =
  3. 3.2/8 + 1/6 =
  4. 4.2/4 + 2/4 =
  5. 5.2/3 + 3/4 =
  6. 6.1/2 + 5/7 =
  7. 7.1/4 + 8/10 =
  8. 8.1/12 + 6/8 =
  9. 9.4/5 − 1/4 =
  10. 10.2/5 + 3/5 =
  11. 11.4/5 − 3/4 =
  12. 12.7/8 + 5/11 =
  13. 13.1/2 + 1/2 =
  14. 14.1/2 − 1/3 =
  15. 15.3/6 + 6/8 =
  16. 16.8/9 + 1/4 =
  17. 17.1/2 + 1/12 =
  18. 18.1/4 + 2/10 =
  19. 19.7/12 − 2/10 =
  20. 20.2/9 + 1/5 =
  21. 21.1/2 + 1/2 =
  22. 22.1/2 − 1/6 =
  23. 23.5/6 − 2/12 =
  24. 24.2/4 + 1/2 =
  25. 25.1/3 + 3/7 =
  26. 26.7/9 − 4/7 =
  27. 27.2/9 + 2/9 =
  28. 28.5/9 + 1/3 =
  29. 29.6/8 + 3/10 =
  30. 30.3/8 + 4/5 =
  31. 31.7/12 − 2/9 =
  32. 32.6/7 + 1/3 =
  33. 33.1/2 + 7/8 =
  34. 34.3/5 + 3/5 =
  35. 35.2/5 − 1/3 =
  36. 36.1/2 − 1/11 =
  37. 37.5/8 − 3/6 =
  38. 38.1/2 + 2/4 =
  39. 39.2/8 + 1/2 =
  40. 40.1/2 + 6/8 =

Answer key

  1. 5/18
  2. 23/24
  3. 5/12
  4. 1
  5. 17/12
  6. 17/14
  7. 21/20
  8. 5/6
  9. 11/20
  10. 1
  11. 1/20
  12. 117/88
  13. 1
  14. 1/6
  15. 5/4
  16. 41/36
  17. 7/12
  18. 9/20
  19. 23/60
  20. 19/45
  21. 1
  22. 1/3
  23. 2/3
  24. 1
  25. 16/21
  26. 13/63
  27. 4/9
  28. 8/9
  29. 21/20
  30. 47/40
  31. 13/36
  32. 25/21
  33. 11/8
  34. 6/5
  35. 1/15
  36. 9/22
  37. 1/8
  38. 1
  39. 3/4
  40. 5/4

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