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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 700 · 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. 1.1/11 + 1/10 =
  2. 2.3/7 + 1/2 =
  3. 3.5/10 + 1/2 =
  4. 4.1/2 + 7/10 =
  5. 5.8/10 + 1/8 =
  6. 6.1/2 − 1/3 =
  7. 7.2/5 + 4/11 =
  8. 8.5/9 + 10/12 =
  9. 9.2/3 − 3/10 =
  10. 10.1/2 + 3/9 =
  11. 11.5/9 − 1/4 =
  12. 12.1/2 + 2/5 =
  13. 13.10/12 + 5/6 =
  14. 14.3/5 − 3/7 =
  15. 15.4/5 + 2/5 =
  16. 16.3/12 + 1/6 =
  17. 17.4/9 − 2/10 =
  18. 18.1/3 − 1/7 =
  19. 19.2/4 − 1/4 =
  20. 20.2/7 + 3/4 =
  21. 21.5/10 + 1/2 =
  22. 22.2/5 − 1/3 =
  23. 23.1/8 + 1/9 =
  24. 24.1/7 + 3/9 =
  25. 25.3/4 + 2/6 =
  26. 26.1/2 + 1/2 =
  27. 27.2/9 + 1/5 =
  28. 28.4/6 + 5/8 =
  29. 29.2/3 + 1/2 =
  30. 30.2/3 + 6/10 =
  31. 31.5/8 − 6/10 =
  32. 32.2/4 − 3/9 =
  33. 33.6/7 − 4/7 =
  34. 34.10/12 − 2/3 =
  35. 35.2/3 + 6/8 =
  36. 36.4/10 + 1/12 =
  37. 37.1/2 + 2/8 =
  38. 38.1/2 + 4/6 =
  39. 39.8/10 + 6/8 =
  40. 40.3/5 − 1/3 =

Answer key

  1. 21/110
  2. 13/14
  3. 1
  4. 6/5
  5. 37/40
  6. 1/6
  7. 42/55
  8. 25/18
  9. 11/30
  10. 5/6
  11. 11/36
  12. 9/10
  13. 5/3
  14. 6/35
  15. 6/5
  16. 5/12
  17. 11/45
  18. 4/21
  19. 1/4
  20. 29/28
  21. 1
  22. 1/15
  23. 17/72
  24. 10/21
  25. 13/12
  26. 1
  27. 19/45
  28. 31/24
  29. 7/6
  30. 19/15
  31. 1/40
  32. 1/6
  33. 2/7
  34. 1/6
  35. 17/12
  36. 29/60
  37. 3/4
  38. 7/6
  39. 31/20
  40. 4/15

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