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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 632 · 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. 1.2/9 + 1/2 =
  2. 2.1/4 + 4/12 =
  3. 3.1/8 + 6/11 =
  4. 4.7/8 − 2/12 =
  5. 5.5/9 + 1/3 =
  6. 6.2/6 + 4/10 =
  7. 7.3/9 + 2/7 =
  8. 8.3/4 − 2/3 =
  9. 9.5/6 − 2/4 =
  10. 10.2/10 + 2/9 =
  11. 11.3/12 − 1/11 =
  12. 12.6/8 + 1/2 =
  13. 13.1/2 + 1/2 =
  14. 14.3/4 + 1/9 =
  15. 15.1/5 + 2/12 =
  16. 16.4/5 + 1/4 =
  17. 17.1/3 + 5/9 =
  18. 18.7/8 − 4/7 =
  19. 19.2/11 + 2/4 =
  20. 20.1/2 + 1/3 =
  21. 21.2/3 + 1/5 =
  22. 22.8/10 − 1/4 =
  23. 23.1/5 − 2/12 =
  24. 24.4/11 − 1/3 =
  25. 25.5/6 − 4/11 =
  26. 26.6/7 + 4/7 =
  27. 27.7/10 − 2/9 =
  28. 28.6/10 − 4/10 =
  29. 29.8/9 + 1/6 =
  30. 30.3/8 + 2/8 =
  31. 31.7/12 − 1/2 =
  32. 32.8/9 − 4/7 =
  33. 33.10/12 + 1/2 =
  34. 34.4/5 − 1/2 =
  35. 35.4/8 + 1/2 =
  36. 36.1/4 + 1/4 =
  37. 37.3/5 − 3/12 =
  38. 38.11/12 + 1/4 =
  39. 39.1/2 + 3/5 =
  40. 40.4/5 − 2/11 =

Answer key

  1. 13/18
  2. 7/12
  3. 59/88
  4. 17/24
  5. 8/9
  6. 11/15
  7. 13/21
  8. 1/12
  9. 1/3
  10. 19/45
  11. 7/44
  12. 5/4
  13. 1
  14. 31/36
  15. 11/30
  16. 21/20
  17. 8/9
  18. 17/56
  19. 15/22
  20. 5/6
  21. 13/15
  22. 11/20
  23. 1/30
  24. 1/33
  25. 31/66
  26. 10/7
  27. 43/90
  28. 1/5
  29. 19/18
  30. 5/8
  31. 1/12
  32. 20/63
  33. 4/3
  34. 3/10
  35. 1
  36. 1/2
  37. 7/20
  38. 7/6
  39. 11/10
  40. 34/55

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