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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 761 · 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. 1.2/5 − 1/4 =
  2. 2.2/5 + 7/12 =
  3. 3.8/9 − 1/2 =
  4. 4.4/5 − 1/10 =
  5. 5.5/8 + 1/2 =
  6. 6.6/10 + 8/12 =
  7. 7.4/5 + 7/12 =
  8. 8.8/11 − 1/11 =
  9. 9.1/5 + 5/10 =
  10. 10.7/8 − 4/9 =
  11. 11.4/8 + 10/11 =
  12. 12.7/12 − 1/8 =
  13. 13.1/2 + 2/4 =
  14. 14.1/2 + 1/9 =
  15. 15.2/3 − 3/9 =
  16. 16.1/2 − 2/6 =
  17. 17.1/8 + 8/10 =
  18. 18.7/8 + 1/10 =
  19. 19.2/3 − 1/3 =
  20. 20.4/5 − 1/10 =
  21. 21.3/5 + 2/4 =
  22. 22.7/12 + 2/4 =
  23. 23.1/2 + 11/12 =
  24. 24.2/7 + 2/3 =
  25. 25.7/8 − 4/6 =
  26. 26.4/6 − 1/9 =
  27. 27.1/9 + 10/12 =
  28. 28.3/4 + 2/3 =
  29. 29.4/7 + 2/8 =
  30. 30.4/12 + 1/3 =
  31. 31.3/4 + 2/8 =
  32. 32.4/8 + 1/2 =
  33. 33.1/2 + 10/11 =
  34. 34.6/7 − 4/5 =
  35. 35.2/4 − 3/11 =
  36. 36.3/7 + 9/11 =
  37. 37.4/5 − 1/7 =
  38. 38.3/7 + 2/3 =
  39. 39.10/11 − 3/4 =
  40. 40.4/5 − 1/9 =

Answer key

  1. 3/20
  2. 59/60
  3. 7/18
  4. 7/10
  5. 9/8
  6. 19/15
  7. 83/60
  8. 7/11
  9. 7/10
  10. 31/72
  11. 31/22
  12. 11/24
  13. 1
  14. 11/18
  15. 1/3
  16. 1/6
  17. 37/40
  18. 39/40
  19. 1/3
  20. 7/10
  21. 11/10
  22. 13/12
  23. 17/12
  24. 20/21
  25. 5/24
  26. 5/9
  27. 17/18
  28. 17/12
  29. 23/28
  30. 2/3
  31. 1
  32. 1
  33. 31/22
  34. 2/35
  35. 5/22
  36. 96/77
  37. 23/35
  38. 23/21
  39. 7/44
  40. 31/45

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