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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 628 · 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. 2.3/5 + 3/9 =
  3. 3.6/10 + 2/11 =
  4. 4.8/12 − 1/3 =
  5. 5.4/5 − 2/9 =
  6. 6.1/2 + 1/9 =
  7. 7.1/3 + 1/7 =
  8. 8.6/9 + 3/5 =
  9. 9.2/12 + 1/9 =
  10. 10.3/4 + 2/4 =
  11. 11.4/7 + 2/7 =
  12. 12.3/5 + 5/6 =
  13. 13.5/9 + 1/2 =
  14. 14.11/12 + 1/4 =
  15. 15.8/11 + 3/4 =
  16. 16.6/12 + 1/2 =
  17. 17.5/11 − 4/11 =
  18. 18.3/11 + 7/8 =
  19. 19.1/2 + 10/11 =
  20. 20.1/3 − 2/11 =
  21. 21.5/10 + 4/8 =
  22. 22.9/12 − 3/10 =
  23. 23.10/11 − 1/2 =
  24. 24.8/12 − 1/8 =
  25. 25.3/4 + 2/3 =
  26. 26.4/5 + 2/3 =
  27. 27.3/10 + 2/6 =
  28. 28.7/11 + 5/6 =
  29. 29.1/2 + 6/12 =
  30. 30.6/7 − 1/6 =
  31. 31.2/4 + 1/2 =
  32. 32.2/6 + 5/6 =
  33. 33.4/5 − 1/2 =
  34. 34.1/4 + 1/11 =
  35. 35.2/3 + 2/5 =
  36. 36.3/8 + 6/9 =
  37. 37.1/2 − 1/10 =
  38. 38.2/4 + 3/6 =
  39. 39.6/8 + 8/10 =
  40. 40.3/4 − 4/8 =

Answer key

  1. 1
  2. 14/15
  3. 43/55
  4. 1/3
  5. 26/45
  6. 11/18
  7. 10/21
  8. 19/15
  9. 5/18
  10. 5/4
  11. 6/7
  12. 43/30
  13. 19/18
  14. 7/6
  15. 65/44
  16. 1
  17. 1/11
  18. 101/88
  19. 31/22
  20. 5/33
  21. 1
  22. 9/20
  23. 9/22
  24. 13/24
  25. 17/12
  26. 22/15
  27. 19/30
  28. 97/66
  29. 1
  30. 29/42
  31. 1
  32. 7/6
  33. 3/10
  34. 15/44
  35. 16/15
  36. 25/24
  37. 2/5
  38. 1
  39. 31/20
  40. 1/4

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