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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 245 · 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. 1.5/9 + 1/3 =
  2. 2.3/11 − 1/4 =
  3. 3.6/7 − 1/3 =
  4. 4.2/3 + 6/10 =
  5. 5.1/2 + 2/8 =
  6. 6.1/10 + 1/11 =
  7. 7.3/6 + 6/12 =
  8. 8.2/4 + 3/6 =
  9. 9.1/2 + 9/12 =
  10. 10.1/2 − 4/10 =
  11. 11.7/10 + 1/5 =
  12. 12.2/6 + 3/8 =
  13. 13.2/5 − 1/3 =
  14. 14.3/10 + 3/4 =
  15. 15.5/7 + 1/4 =
  16. 16.6/9 + 1/2 =
  17. 17.7/10 + 3/7 =
  18. 18.4/7 + 1/5 =
  19. 19.2/3 − 1/3 =
  20. 20.4/10 + 2/11 =
  21. 21.1/2 + 1/4 =
  22. 22.1/2 + 1/6 =
  23. 23.4/12 + 3/5 =
  24. 24.4/8 − 1/7 =
  25. 25.1/3 + 2/8 =
  26. 26.6/8 − 2/6 =
  27. 27.1/3 + 4/10 =
  28. 28.5/6 + 2/4 =
  29. 29.1/2 − 2/9 =
  30. 30.2/3 + 2/10 =
  31. 31.6/11 − 1/2 =
  32. 32.4/5 + 6/7 =
  33. 33.3/8 + 2/4 =
  34. 34.6/8 + 3/6 =
  35. 35.3/8 − 1/4 =
  36. 36.1/8 + 2/7 =
  37. 37.5/8 + 11/12 =
  38. 38.3/4 − 1/7 =
  39. 39.9/10 + 5/9 =
  40. 40.2/3 − 1/7 =

Answer key

  1. 8/9
  2. 1/44
  3. 11/21
  4. 19/15
  5. 3/4
  6. 21/110
  7. 1
  8. 1
  9. 5/4
  10. 1/10
  11. 9/10
  12. 17/24
  13. 1/15
  14. 21/20
  15. 27/28
  16. 7/6
  17. 79/70
  18. 27/35
  19. 1/3
  20. 32/55
  21. 3/4
  22. 2/3
  23. 14/15
  24. 5/14
  25. 7/12
  26. 5/12
  27. 11/15
  28. 4/3
  29. 5/18
  30. 13/15
  31. 1/22
  32. 58/35
  33. 7/8
  34. 5/4
  35. 1/8
  36. 23/56
  37. 37/24
  38. 17/28
  39. 131/90
  40. 11/21

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