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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 301 · 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. 1.7/9 − 4/10 =
  2. 2.10/12 + 1/8 =
  3. 3.6/12 − 1/4 =
  4. 4.5/10 − 1/3 =
  5. 5.1/6 + 3/12 =
  6. 6.10/12 + 1/2 =
  7. 7.3/5 + 2/7 =
  8. 8.6/7 + 5/6 =
  9. 9.2/3 − 5/12 =
  10. 10.1/2 + 1/2 =
  11. 11.10/11 + 6/8 =
  12. 12.4/5 − 1/9 =
  13. 13.9/11 − 1/9 =
  14. 14.3/4 + 3/8 =
  15. 15.7/12 + 1/5 =
  16. 16.11/12 − 4/6 =
  17. 17.7/10 + 5/10 =
  18. 18.10/12 + 1/3 =
  19. 19.9/11 − 6/10 =
  20. 20.1/9 + 2/11 =
  21. 21.6/11 + 1/6 =
  22. 22.6/8 + 2/7 =
  23. 23.5/6 − 1/5 =
  24. 24.1/3 + 7/10 =
  25. 25.4/5 − 2/10 =
  26. 26.4/6 + 4/7 =
  27. 27.1/4 + 2/3 =
  28. 28.5/10 + 3/9 =
  29. 29.5/10 − 5/12 =
  30. 30.4/6 + 5/7 =
  31. 31.4/8 + 2/3 =
  32. 32.1/5 − 2/11 =
  33. 33.6/8 − 2/10 =
  34. 34.4/9 + 2/8 =
  35. 35.8/10 + 2/3 =
  36. 36.6/11 + 1/6 =
  37. 37.4/6 − 2/6 =
  38. 38.1/2 + 1/2 =
  39. 39.1/7 + 10/11 =
  40. 40.10/11 − 1/2 =

Answer key

  1. 17/45
  2. 23/24
  3. 1/4
  4. 1/6
  5. 5/12
  6. 4/3
  7. 31/35
  8. 71/42
  9. 1/4
  10. 1
  11. 73/44
  12. 31/45
  13. 70/99
  14. 9/8
  15. 47/60
  16. 1/4
  17. 6/5
  18. 7/6
  19. 12/55
  20. 29/99
  21. 47/66
  22. 29/28
  23. 19/30
  24. 31/30
  25. 3/5
  26. 26/21
  27. 11/12
  28. 5/6
  29. 1/12
  30. 29/21
  31. 7/6
  32. 1/55
  33. 11/20
  34. 25/36
  35. 22/15
  36. 47/66
  37. 1/3
  38. 1
  39. 81/77
  40. 9/22

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