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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 345 · 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 − 2/7 =
  2. 2.7/11 + 4/12 =
  3. 3.4/5 − 1/2 =
  4. 4.2/4 + 6/7 =
  5. 5.11/12 + 1/4 =
  6. 6.4/8 − 2/9 =
  7. 7.8/10 + 1/2 =
  8. 8.1/2 + 7/8 =
  9. 9.3/10 + 6/12 =
  10. 10.1/10 + 1/2 =
  11. 11.8/9 − 2/7 =
  12. 12.3/4 + 2/4 =
  13. 13.3/12 − 2/10 =
  14. 14.10/12 − 1/2 =
  15. 15.3/7 + 2/3 =
  16. 16.1/4 + 4/12 =
  17. 17.1/2 + 2/6 =
  18. 18.2/6 + 1/4 =
  19. 19.11/12 − 1/3 =
  20. 20.3/5 + 4/10 =
  21. 21.2/4 + 1/2 =
  22. 22.1/7 + 2/11 =
  23. 23.1/3 − 2/7 =
  24. 24.1/6 + 1/5 =
  25. 25.2/5 + 3/11 =
  26. 26.3/8 + 1/9 =
  27. 27.1/4 + 1/2 =
  28. 28.1/2 + 4/5 =
  29. 29.4/7 + 1/2 =
  30. 30.2/4 − 3/10 =
  31. 31.1/8 + 5/8 =
  32. 32.1/2 + 1/2 =
  33. 33.1/2 + 3/4 =
  34. 34.5/7 − 1/2 =
  35. 35.8/12 + 2/10 =
  36. 36.1/4 − 2/12 =
  37. 37.1/2 − 4/12 =
  38. 38.1/11 + 1/2 =
  39. 39.1/10 + 2/10 =
  40. 40.8/12 − 3/6 =

Answer key

  1. 3/14
  2. 32/33
  3. 3/10
  4. 19/14
  5. 7/6
  6. 5/18
  7. 13/10
  8. 11/8
  9. 4/5
  10. 3/5
  11. 38/63
  12. 5/4
  13. 1/20
  14. 1/3
  15. 23/21
  16. 7/12
  17. 5/6
  18. 7/12
  19. 7/12
  20. 1
  21. 1
  22. 25/77
  23. 1/21
  24. 11/30
  25. 37/55
  26. 35/72
  27. 3/4
  28. 13/10
  29. 15/14
  30. 1/5
  31. 3/4
  32. 1
  33. 5/4
  34. 3/14
  35. 13/15
  36. 1/12
  37. 1/6
  38. 13/22
  39. 3/10
  40. 1/6

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