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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 250 · 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. 1.9/12 − 1/5 =
  2. 2.3/4 + 2/8 =
  3. 3.1/5 + 5/9 =
  4. 4.6/10 − 4/9 =
  5. 5.3/5 − 7/12 =
  6. 6.2/6 + 1/3 =
  7. 7.1/7 + 8/9 =
  8. 8.5/10 + 11/12 =
  9. 9.1/6 + 1/6 =
  10. 10.4/6 − 1/7 =
  11. 11.1/4 − 2/9 =
  12. 12.9/12 + 3/8 =
  13. 13.7/9 − 4/12 =
  14. 14.3/4 + 1/2 =
  15. 15.1/8 + 7/11 =
  16. 16.1/2 + 1/3 =
  17. 17.1/4 − 1/8 =
  18. 18.4/9 − 2/5 =
  19. 19.8/10 − 1/9 =
  20. 20.4/12 + 1/9 =
  21. 21.4/5 − 1/3 =
  22. 22.3/4 − 4/12 =
  23. 23.3/5 − 1/2 =
  24. 24.1/8 + 3/4 =
  25. 25.7/9 + 2/10 =
  26. 26.2/6 − 1/6 =
  27. 27.10/11 + 2/8 =
  28. 28.2/5 + 1/5 =
  29. 29.1/3 + 7/8 =
  30. 30.1/2 + 1/2 =
  31. 31.1/2 − 1/6 =
  32. 32.1/6 + 1/2 =
  33. 33.1/6 + 8/12 =
  34. 34.4/5 − 1/2 =
  35. 35.11/12 + 3/11 =
  36. 36.2/5 − 1/8 =
  37. 37.2/4 − 2/7 =
  38. 38.5/8 + 2/4 =
  39. 39.2/3 − 4/7 =
  40. 40.1/5 + 1/3 =

Answer key

  1. 11/20
  2. 1
  3. 34/45
  4. 7/45
  5. 1/60
  6. 2/3
  7. 65/63
  8. 17/12
  9. 1/3
  10. 11/21
  11. 1/36
  12. 9/8
  13. 4/9
  14. 5/4
  15. 67/88
  16. 5/6
  17. 1/8
  18. 2/45
  19. 31/45
  20. 4/9
  21. 7/15
  22. 5/12
  23. 1/10
  24. 7/8
  25. 44/45
  26. 1/6
  27. 51/44
  28. 3/5
  29. 29/24
  30. 1
  31. 1/3
  32. 2/3
  33. 5/6
  34. 3/10
  35. 157/132
  36. 11/40
  37. 3/14
  38. 9/8
  39. 2/21
  40. 8/15

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