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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 446 · 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. 1.3/8 − 1/3 =
  2. 2.2/6 + 3/12 =
  3. 3.2/3 − 2/6 =
  4. 4.2/3 + 7/8 =
  5. 5.3/4 − 1/3 =
  6. 6.10/12 + 1/4 =
  7. 7.1/2 − 3/9 =
  8. 8.5/12 + 5/6 =
  9. 9.1/2 + 1/3 =
  10. 10.2/7 − 1/11 =
  11. 11.5/8 + 2/6 =
  12. 12.1/5 + 1/2 =
  13. 13.3/8 + 1/2 =
  14. 14.4/7 + 3/4 =
  15. 15.1/5 − 1/7 =
  16. 16.4/6 + 7/11 =
  17. 17.3/5 − 1/3 =
  18. 18.1/2 + 1/2 =
  19. 19.6/9 + 6/8 =
  20. 20.2/3 − 4/9 =
  21. 21.1/3 + 5/8 =
  22. 22.4/5 − 7/11 =
  23. 23.1/3 − 2/9 =
  24. 24.4/5 + 1/3 =
  25. 25.3/10 + 8/10 =
  26. 26.1/2 − 1/3 =
  27. 27.4/6 − 3/7 =
  28. 28.5/12 + 4/6 =
  29. 29.6/10 + 2/3 =
  30. 30.5/6 + 1/2 =
  31. 31.1/7 + 5/12 =
  32. 32.1/2 + 1/3 =
  33. 33.7/9 + 1/8 =
  34. 34.7/9 − 4/7 =
  35. 35.8/9 − 7/8 =
  36. 36.3/11 − 1/6 =
  37. 37.2/5 + 2/5 =
  38. 38.7/9 + 10/12 =
  39. 39.1/3 + 4/9 =
  40. 40.3/4 + 7/8 =

Answer key

  1. 1/24
  2. 7/12
  3. 1/3
  4. 37/24
  5. 5/12
  6. 13/12
  7. 1/6
  8. 5/4
  9. 5/6
  10. 15/77
  11. 23/24
  12. 7/10
  13. 7/8
  14. 37/28
  15. 2/35
  16. 43/33
  17. 4/15
  18. 1
  19. 17/12
  20. 2/9
  21. 23/24
  22. 9/55
  23. 1/9
  24. 17/15
  25. 11/10
  26. 1/6
  27. 5/21
  28. 13/12
  29. 19/15
  30. 4/3
  31. 47/84
  32. 5/6
  33. 65/72
  34. 13/63
  35. 1/72
  36. 7/66
  37. 4/5
  38. 29/18
  39. 7/9
  40. 13/8

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