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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 107 · 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 + 1/7 =
  2. 2.2/4 − 3/7 =
  3. 3.3/5 − 1/5 =
  4. 4.4/5 − 1/12 =
  5. 5.4/7 − 2/6 =
  6. 6.2/3 + 1/2 =
  7. 7.10/11 − 1/4 =
  8. 8.1/2 − 2/8 =
  9. 9.3/6 − 2/11 =
  10. 10.1/9 + 3/8 =
  11. 11.8/11 − 1/2 =
  12. 12.1/4 + 1/6 =
  13. 13.5/12 − 1/5 =
  14. 14.1/2 − 1/6 =
  15. 15.1/4 + 2/6 =
  16. 16.2/8 + 8/12 =
  17. 17.5/12 + 2/6 =
  18. 18.1/2 − 5/12 =
  19. 19.4/5 − 5/7 =
  20. 20.4/5 − 4/10 =
  21. 21.2/4 + 1/2 =
  22. 22.7/12 − 1/2 =
  23. 23.3/6 + 3/7 =
  24. 24.3/6 + 9/10 =
  25. 25.1/2 − 1/4 =
  26. 26.1/2 − 3/7 =
  27. 27.2/9 + 5/8 =
  28. 28.1/9 + 5/7 =
  29. 29.3/12 + 1/3 =
  30. 30.3/4 − 1/2 =
  31. 31.2/10 − 1/11 =
  32. 32.1/10 + 1/2 =
  33. 33.5/6 + 10/12 =
  34. 34.3/4 + 7/9 =
  35. 35.4/7 + 1/2 =
  36. 36.1/2 + 1/3 =
  37. 37.1/6 + 3/9 =
  38. 38.2/6 + 8/9 =
  39. 39.1/4 − 1/5 =
  40. 40.1/2 + 1/3 =

Answer key

  1. 9/14
  2. 1/14
  3. 2/5
  4. 43/60
  5. 5/21
  6. 7/6
  7. 29/44
  8. 1/4
  9. 7/22
  10. 35/72
  11. 5/22
  12. 5/12
  13. 13/60
  14. 1/3
  15. 7/12
  16. 11/12
  17. 3/4
  18. 1/12
  19. 3/35
  20. 2/5
  21. 1
  22. 1/12
  23. 13/14
  24. 7/5
  25. 1/4
  26. 1/14
  27. 61/72
  28. 52/63
  29. 7/12
  30. 1/4
  31. 6/55
  32. 3/5
  33. 5/3
  34. 55/36
  35. 15/14
  36. 5/6
  37. 1/2
  38. 11/9
  39. 1/20
  40. 5/6

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