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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 366 · 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. 1.2/5 − 3/8 =
  2. 2.1/10 + 2/6 =
  3. 3.3/4 + 1/2 =
  4. 4.1/2 + 1/2 =
  5. 5.4/9 − 1/3 =
  6. 6.3/5 − 1/5 =
  7. 7.5/7 − 2/5 =
  8. 8.3/4 + 6/8 =
  9. 9.1/6 + 3/7 =
  10. 10.2/7 + 9/12 =
  11. 11.5/7 − 1/2 =
  12. 12.1/5 + 6/9 =
  13. 13.3/7 + 1/12 =
  14. 14.1/3 + 2/7 =
  15. 15.2/3 − 2/4 =
  16. 16.1/7 − 1/12 =
  17. 17.3/4 − 6/12 =
  18. 18.2/4 + 3/5 =
  19. 19.6/7 − 2/8 =
  20. 20.5/6 + 1/2 =
  21. 21.3/4 − 3/5 =
  22. 22.6/8 + 6/9 =
  23. 23.1/2 − 3/8 =
  24. 24.1/5 + 1/2 =
  25. 25.1/10 + 1/2 =
  26. 26.4/5 + 1/3 =
  27. 27.1/4 + 2/4 =
  28. 28.4/8 + 1/2 =
  29. 29.1/2 − 1/5 =
  30. 30.4/11 + 4/10 =
  31. 31.4/8 − 2/5 =
  32. 32.1/3 + 1/5 =
  33. 33.6/8 + 9/11 =
  34. 34.1/4 + 5/6 =
  35. 35.1/4 + 2/3 =
  36. 36.1/3 + 2/7 =
  37. 37.5/9 − 1/3 =
  38. 38.1/2 − 1/11 =
  39. 39.1/3 − 2/7 =
  40. 40.5/8 + 1/8 =

Answer key

  1. 1/40
  2. 13/30
  3. 5/4
  4. 1
  5. 1/9
  6. 2/5
  7. 11/35
  8. 3/2
  9. 25/42
  10. 29/28
  11. 3/14
  12. 13/15
  13. 43/84
  14. 13/21
  15. 1/6
  16. 5/84
  17. 1/4
  18. 11/10
  19. 17/28
  20. 4/3
  21. 3/20
  22. 17/12
  23. 1/8
  24. 7/10
  25. 3/5
  26. 17/15
  27. 3/4
  28. 1
  29. 3/10
  30. 42/55
  31. 1/10
  32. 8/15
  33. 69/44
  34. 13/12
  35. 11/12
  36. 13/21
  37. 2/9
  38. 9/22
  39. 1/21
  40. 3/4

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