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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 143 · 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. 1.10/11 − 2/4 =
  2. 2.1/8 + 4/7 =
  3. 3.1/5 − 1/10 =
  4. 4.2/7 + 2/3 =
  5. 5.1/2 + 3/4 =
  6. 6.1/7 + 2/3 =
  7. 7.10/11 − 1/4 =
  8. 8.6/7 + 2/4 =
  9. 9.1/2 + 4/7 =
  10. 10.2/6 − 1/4 =
  11. 11.3/5 − 1/2 =
  12. 12.3/4 + 10/12 =
  13. 13.5/12 + 1/8 =
  14. 14.1/3 + 1/9 =
  15. 15.10/12 − 4/6 =
  16. 16.6/8 − 1/7 =
  17. 17.1/2 + 4/5 =
  18. 18.6/8 − 1/5 =
  19. 19.3/5 + 7/12 =
  20. 20.5/9 + 1/4 =
  21. 21.4/8 + 2/5 =
  22. 22.3/4 + 3/10 =
  23. 23.3/5 + 4/12 =
  24. 24.2/3 + 8/12 =
  25. 25.2/8 + 1/2 =
  26. 26.6/10 − 5/10 =
  27. 27.2/3 + 1/12 =
  28. 28.9/11 + 3/4 =
  29. 29.2/3 − 1/4 =
  30. 30.4/8 + 7/8 =
  31. 31.4/6 + 1/2 =
  32. 32.6/9 + 1/10 =
  33. 33.1/2 + 1/2 =
  34. 34.3/8 + 6/10 =
  35. 35.1/6 + 3/9 =
  36. 36.3/8 + 7/12 =
  37. 37.1/4 + 3/6 =
  38. 38.4/12 + 1/11 =
  39. 39.5/7 − 1/4 =
  40. 40.4/7 + 1/6 =

Answer key

  1. 9/22
  2. 39/56
  3. 1/10
  4. 20/21
  5. 5/4
  6. 17/21
  7. 29/44
  8. 19/14
  9. 15/14
  10. 1/12
  11. 1/10
  12. 19/12
  13. 13/24
  14. 4/9
  15. 1/6
  16. 17/28
  17. 13/10
  18. 11/20
  19. 71/60
  20. 29/36
  21. 9/10
  22. 21/20
  23. 14/15
  24. 4/3
  25. 3/4
  26. 1/10
  27. 3/4
  28. 69/44
  29. 5/12
  30. 11/8
  31. 7/6
  32. 23/30
  33. 1
  34. 39/40
  35. 1/2
  36. 23/24
  37. 3/4
  38. 14/33
  39. 13/28
  40. 31/42

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