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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 620 · 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 − 5/7 =
  2. 2.2/4 + 9/11 =
  3. 3.7/9 − 2/6 =
  4. 4.1/9 + 1/2 =
  5. 5.1/5 + 3/8 =
  6. 6.5/11 − 1/5 =
  7. 7.2/7 − 2/8 =
  8. 8.3/7 + 6/8 =
  9. 9.2/3 + 6/10 =
  10. 10.6/10 + 1/2 =
  11. 11.5/12 + 1/4 =
  12. 12.2/4 + 3/4 =
  13. 13.1/3 + 2/9 =
  14. 14.5/8 − 3/8 =
  15. 15.7/9 + 7/9 =
  16. 16.5/6 − 4/6 =
  17. 17.7/12 − 3/8 =
  18. 18.5/10 + 4/6 =
  19. 19.4/5 − 2/4 =
  20. 20.1/2 − 1/5 =
  21. 21.4/7 + 6/7 =
  22. 22.3/4 − 3/5 =
  23. 23.1/2 + 5/8 =
  24. 24.4/9 + 2/10 =
  25. 25.3/4 − 3/5 =
  26. 26.1/5 + 6/10 =
  27. 27.3/6 + 1/5 =
  28. 28.5/7 − 1/2 =
  29. 29.2/6 − 2/12 =
  30. 30.2/6 + 1/4 =
  31. 31.1/2 − 2/8 =
  32. 32.8/10 + 1/2 =
  33. 33.1/2 + 4/6 =
  34. 34.2/9 − 1/7 =
  35. 35.1/2 + 1/12 =
  36. 36.1/5 − 1/6 =
  37. 37.10/11 + 3/9 =
  38. 38.3/10 + 2/5 =
  39. 39.1/9 + 1/5 =
  40. 40.2/4 + 2/9 =

Answer key

  1. 3/35
  2. 29/22
  3. 4/9
  4. 11/18
  5. 23/40
  6. 14/55
  7. 1/28
  8. 33/28
  9. 19/15
  10. 11/10
  11. 2/3
  12. 5/4
  13. 5/9
  14. 1/4
  15. 14/9
  16. 1/6
  17. 5/24
  18. 7/6
  19. 3/10
  20. 3/10
  21. 10/7
  22. 3/20
  23. 9/8
  24. 29/45
  25. 3/20
  26. 4/5
  27. 7/10
  28. 3/14
  29. 1/6
  30. 7/12
  31. 1/4
  32. 13/10
  33. 7/6
  34. 5/63
  35. 7/12
  36. 1/30
  37. 41/33
  38. 7/10
  39. 14/45
  40. 13/18

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