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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 287 · 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. 1.3/4 − 5/7 =
  2. 2.3/10 + 8/10 =
  3. 3.2/4 + 5/11 =
  4. 4.6/9 + 1/9 =
  5. 5.4/12 − 1/6 =
  6. 6.3/12 + 1/2 =
  7. 7.5/6 − 3/5 =
  8. 8.1/4 + 1/8 =
  9. 9.1/4 + 6/10 =
  10. 10.3/7 − 2/8 =
  11. 11.9/10 − 6/8 =
  12. 12.3/9 + 4/5 =
  13. 13.1/2 + 3/7 =
  14. 14.6/7 − 3/10 =
  15. 15.1/6 + 5/6 =
  16. 16.1/3 − 2/11 =
  17. 17.10/12 − 1/4 =
  18. 18.7/8 − 1/2 =
  19. 19.2/3 − 2/7 =
  20. 20.2/4 + 1/2 =
  21. 21.3/4 − 1/7 =
  22. 22.1/2 + 2/7 =
  23. 23.2/4 + 2/8 =
  24. 24.5/6 − 1/2 =
  25. 25.7/11 + 3/8 =
  26. 26.4/6 + 2/4 =
  27. 27.11/12 + 1/2 =
  28. 28.6/7 + 5/10 =
  29. 29.2/4 + 1/2 =
  30. 30.1/4 + 2/4 =
  31. 31.7/10 − 1/5 =
  32. 32.3/10 − 1/5 =
  33. 33.6/7 + 4/6 =
  34. 34.2/3 − 3/10 =
  35. 35.7/12 + 2/9 =
  36. 36.1/2 − 1/3 =
  37. 37.4/5 + 9/12 =
  38. 38.1/2 − 2/5 =
  39. 39.1/4 + 5/9 =
  40. 40.3/10 + 1/6 =

Answer key

  1. 1/28
  2. 11/10
  3. 21/22
  4. 7/9
  5. 1/6
  6. 3/4
  7. 7/30
  8. 3/8
  9. 17/20
  10. 5/28
  11. 3/20
  12. 17/15
  13. 13/14
  14. 39/70
  15. 1
  16. 5/33
  17. 7/12
  18. 3/8
  19. 8/21
  20. 1
  21. 17/28
  22. 11/14
  23. 3/4
  24. 1/3
  25. 89/88
  26. 7/6
  27. 17/12
  28. 19/14
  29. 1
  30. 3/4
  31. 1/2
  32. 1/10
  33. 32/21
  34. 11/30
  35. 29/36
  36. 1/6
  37. 31/20
  38. 1/10
  39. 29/36
  40. 7/15

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