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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 854 · 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. 1.4/5 − 3/4 =
  2. 2.1/4 + 3/4 =
  3. 3.3/4 − 4/9 =
  4. 4.2/3 + 8/10 =
  5. 5.9/12 + 5/6 =
  6. 6.3/5 + 1/4 =
  7. 7.9/10 + 5/7 =
  8. 8.10/12 + 3/4 =
  9. 9.3/6 + 7/8 =
  10. 10.1/11 + 7/11 =
  11. 11.6/8 + 2/6 =
  12. 12.2/12 + 2/4 =
  13. 13.6/7 + 1/9 =
  14. 14.4/6 − 2/5 =
  15. 15.7/8 + 1/2 =
  16. 16.3/6 + 11/12 =
  17. 17.2/4 + 3/11 =
  18. 18.4/6 − 2/8 =
  19. 19.1/2 + 5/12 =
  20. 20.1/10 + 3/4 =
  21. 21.6/7 − 1/2 =
  22. 22.6/12 − 2/12 =
  23. 23.7/8 + 1/2 =
  24. 24.1/4 + 2/3 =
  25. 25.2/3 + 1/4 =
  26. 26.7/10 − 2/4 =
  27. 27.3/8 − 1/4 =
  28. 28.10/11 + 5/8 =
  29. 29.6/10 + 1/2 =
  30. 30.1/10 + 2/9 =
  31. 31.2/3 + 3/4 =
  32. 32.1/2 − 2/8 =
  33. 33.8/9 − 5/7 =
  34. 34.5/11 + 2/4 =
  35. 35.1/6 + 11/12 =
  36. 36.1/2 + 7/8 =
  37. 37.2/5 + 1/2 =
  38. 38.1/2 − 1/3 =
  39. 39.4/6 + 4/7 =
  40. 40.6/7 − 4/7 =

Answer key

  1. 1/20
  2. 1
  3. 11/36
  4. 22/15
  5. 19/12
  6. 17/20
  7. 113/70
  8. 19/12
  9. 11/8
  10. 8/11
  11. 13/12
  12. 2/3
  13. 61/63
  14. 4/15
  15. 11/8
  16. 17/12
  17. 17/22
  18. 5/12
  19. 11/12
  20. 17/20
  21. 5/14
  22. 1/3
  23. 11/8
  24. 11/12
  25. 11/12
  26. 1/5
  27. 1/8
  28. 135/88
  29. 11/10
  30. 29/90
  31. 17/12
  32. 1/4
  33. 11/63
  34. 21/22
  35. 13/12
  36. 11/8
  37. 9/10
  38. 1/6
  39. 26/21
  40. 2/7

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