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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 411 · 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. 1.3/5 − 2/4 =
  2. 2.3/4 − 1/2 =
  3. 3.8/9 − 2/6 =
  4. 4.5/7 − 2/10 =
  5. 5.2/9 + 8/9 =
  6. 6.1/2 + 1/2 =
  7. 7.1/2 + 2/5 =
  8. 8.2/7 + 1/3 =
  9. 9.1/4 + 1/2 =
  10. 10.2/7 + 1/4 =
  11. 11.7/8 − 7/10 =
  12. 12.9/10 − 1/2 =
  13. 13.3/5 − 5/11 =
  14. 14.5/11 − 2/8 =
  15. 15.5/9 − 3/9 =
  16. 16.4/7 + 3/11 =
  17. 17.4/9 − 1/3 =
  18. 18.9/10 − 1/2 =
  19. 19.6/11 − 1/2 =
  20. 20.10/12 + 5/12 =
  21. 21.8/9 − 1/3 =
  22. 22.9/10 − 2/5 =
  23. 23.10/11 + 1/6 =
  24. 24.1/6 + 5/7 =
  25. 25.1/4 + 1/6 =
  26. 26.7/10 − 2/6 =
  27. 27.3/11 + 3/4 =
  28. 28.1/5 + 3/12 =
  29. 29.7/10 − 2/5 =
  30. 30.10/11 + 5/10 =
  31. 31.7/12 − 1/2 =
  32. 32.3/7 − 2/10 =
  33. 33.6/7 − 3/7 =
  34. 34.7/8 − 2/3 =
  35. 35.7/8 + 2/8 =
  36. 36.4/6 + 2/11 =
  37. 37.1/3 + 2/3 =
  38. 38.1/5 + 1/2 =
  39. 39.10/12 + 1/10 =
  40. 40.2/6 − 1/10 =

Answer key

  1. 1/10
  2. 1/4
  3. 5/9
  4. 18/35
  5. 10/9
  6. 1
  7. 9/10
  8. 13/21
  9. 3/4
  10. 15/28
  11. 7/40
  12. 2/5
  13. 8/55
  14. 9/44
  15. 2/9
  16. 65/77
  17. 1/9
  18. 2/5
  19. 1/22
  20. 5/4
  21. 5/9
  22. 1/2
  23. 71/66
  24. 37/42
  25. 5/12
  26. 11/30
  27. 45/44
  28. 9/20
  29. 3/10
  30. 31/22
  31. 1/12
  32. 8/35
  33. 3/7
  34. 5/24
  35. 9/8
  36. 28/33
  37. 1
  38. 7/10
  39. 14/15
  40. 7/30

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