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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 359 · 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. 1.1/2 + 1/2 =
  2. 2.1/2 − 3/8 =
  3. 3.4/9 + 1/11 =
  4. 4.7/12 − 1/2 =
  5. 5.6/7 − 3/4 =
  6. 6.10/11 − 1/2 =
  7. 7.4/7 + 1/3 =
  8. 8.1/3 + 6/9 =
  9. 9.5/9 − 2/4 =
  10. 10.8/9 − 1/5 =
  11. 11.4/6 + 2/7 =
  12. 12.4/9 + 1/2 =
  13. 13.4/5 − 1/5 =
  14. 14.4/5 + 1/11 =
  15. 15.1/3 + 2/9 =
  16. 16.1/2 + 6/11 =
  17. 17.2/11 + 7/8 =
  18. 18.2/4 + 1/2 =
  19. 19.2/3 − 2/4 =
  20. 20.6/12 − 3/8 =
  21. 21.1/4 + 1/10 =
  22. 22.2/6 + 5/12 =
  23. 23.2/5 − 2/12 =
  24. 24.2/3 + 3/6 =
  25. 25.10/11 + 2/11 =
  26. 26.2/3 − 4/9 =
  27. 27.4/10 + 2/5 =
  28. 28.8/9 + 1/2 =
  29. 29.3/5 − 2/4 =
  30. 30.1/7 + 5/6 =
  31. 31.3/4 − 8/12 =
  32. 32.5/8 + 2/11 =
  33. 33.1/2 − 1/9 =
  34. 34.1/9 + 11/12 =
  35. 35.1/2 − 1/12 =
  36. 36.4/5 − 1/2 =
  37. 37.1/2 + 4/5 =
  38. 38.2/8 + 2/5 =
  39. 39.7/10 − 2/6 =
  40. 40.7/8 − 4/6 =

Answer key

  1. 1
  2. 1/8
  3. 53/99
  4. 1/12
  5. 3/28
  6. 9/22
  7. 19/21
  8. 1
  9. 1/18
  10. 31/45
  11. 20/21
  12. 17/18
  13. 3/5
  14. 49/55
  15. 5/9
  16. 23/22
  17. 93/88
  18. 1
  19. 1/6
  20. 1/8
  21. 7/20
  22. 3/4
  23. 7/30
  24. 7/6
  25. 12/11
  26. 2/9
  27. 4/5
  28. 25/18
  29. 1/10
  30. 41/42
  31. 1/12
  32. 71/88
  33. 7/18
  34. 37/36
  35. 5/12
  36. 3/10
  37. 13/10
  38. 13/20
  39. 11/30
  40. 5/24

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