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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 188 · 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. 1.3/5 − 1/7 =
  2. 2.1/2 + 1/6 =
  3. 3.5/9 − 1/2 =
  4. 4.3/5 − 1/6 =
  5. 5.5/12 − 2/6 =
  6. 6.4/9 + 2/3 =
  7. 7.9/11 − 1/8 =
  8. 8.1/2 + 6/12 =
  9. 9.5/6 − 2/9 =
  10. 10.1/5 + 5/8 =
  11. 11.10/11 − 2/5 =
  12. 12.1/2 − 1/6 =
  13. 13.9/11 + 1/2 =
  14. 14.4/12 + 1/9 =
  15. 15.2/7 + 4/9 =
  16. 16.1/6 + 1/2 =
  17. 17.10/12 − 3/9 =
  18. 18.1/3 + 1/7 =
  19. 19.3/7 − 1/9 =
  20. 20.4/7 + 1/2 =
  21. 21.4/5 + 3/10 =
  22. 22.5/6 − 1/7 =
  23. 23.3/4 + 2/3 =
  24. 24.2/3 − 4/10 =
  25. 25.11/12 + 4/12 =
  26. 26.1/5 + 1/6 =
  27. 27.1/6 + 7/9 =
  28. 28.3/5 + 3/5 =
  29. 29.2/5 − 1/5 =
  30. 30.2/4 − 3/11 =
  31. 31.5/10 + 2/3 =
  32. 32.3/10 − 1/8 =
  33. 33.2/3 − 2/12 =
  34. 34.2/3 − 1/3 =
  35. 35.3/4 − 2/8 =
  36. 36.1/12 + 6/10 =
  37. 37.2/3 + 4/7 =
  38. 38.8/11 − 2/3 =
  39. 39.5/6 + 2/12 =
  40. 40.6/7 − 1/3 =

Answer key

  1. 16/35
  2. 2/3
  3. 1/18
  4. 13/30
  5. 1/12
  6. 10/9
  7. 61/88
  8. 1
  9. 11/18
  10. 33/40
  11. 28/55
  12. 1/3
  13. 29/22
  14. 4/9
  15. 46/63
  16. 2/3
  17. 1/2
  18. 10/21
  19. 20/63
  20. 15/14
  21. 11/10
  22. 29/42
  23. 17/12
  24. 4/15
  25. 5/4
  26. 11/30
  27. 17/18
  28. 6/5
  29. 1/5
  30. 5/22
  31. 7/6
  32. 7/40
  33. 1/2
  34. 1/3
  35. 1/2
  36. 41/60
  37. 26/21
  38. 2/33
  39. 1
  40. 11/21

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