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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 990 · 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. 1.4/7 + 8/10 =
  2. 2.10/11 − 2/9 =
  3. 3.2/9 + 4/11 =
  4. 4.2/7 + 4/10 =
  5. 5.1/2 + 2/4 =
  6. 6.1/2 + 1/4 =
  7. 7.2/5 + 4/10 =
  8. 8.4/7 + 4/5 =
  9. 9.4/7 + 4/7 =
  10. 10.1/11 + 5/9 =
  11. 11.5/11 − 3/9 =
  12. 12.1/10 + 1/3 =
  13. 13.1/3 + 1/3 =
  14. 14.2/12 + 10/12 =
  15. 15.5/6 − 3/7 =
  16. 16.5/6 − 8/10 =
  17. 17.6/7 + 1/3 =
  18. 18.3/12 + 1/2 =
  19. 19.1/11 + 1/3 =
  20. 20.7/9 − 1/3 =
  21. 21.1/2 + 1/3 =
  22. 22.8/10 − 2/3 =
  23. 23.9/12 − 1/2 =
  24. 24.7/8 − 3/4 =
  25. 25.3/5 − 1/2 =
  26. 26.6/11 − 1/2 =
  27. 27.10/11 − 1/2 =
  28. 28.10/11 + 1/6 =
  29. 29.1/2 + 4/6 =
  30. 30.1/5 + 2/11 =
  31. 31.1/6 + 1/3 =
  32. 32.1/2 + 9/10 =
  33. 33.4/5 + 3/4 =
  34. 34.7/9 − 3/5 =
  35. 35.3/4 − 1/2 =
  36. 36.3/8 + 1/2 =
  37. 37.5/6 − 1/11 =
  38. 38.6/11 − 1/2 =
  39. 39.2/3 + 1/5 =
  40. 40.3/4 − 2/3 =

Answer key

  1. 48/35
  2. 68/99
  3. 58/99
  4. 24/35
  5. 1
  6. 3/4
  7. 4/5
  8. 48/35
  9. 8/7
  10. 64/99
  11. 4/33
  12. 13/30
  13. 2/3
  14. 1
  15. 17/42
  16. 1/30
  17. 25/21
  18. 3/4
  19. 14/33
  20. 4/9
  21. 5/6
  22. 2/15
  23. 1/4
  24. 1/8
  25. 1/10
  26. 1/22
  27. 9/22
  28. 71/66
  29. 7/6
  30. 21/55
  31. 1/2
  32. 7/5
  33. 31/20
  34. 8/45
  35. 1/4
  36. 7/8
  37. 49/66
  38. 1/22
  39. 13/15
  40. 1/12

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