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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 988 · 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. 1.5/7 + 1/4 =
  2. 2.8/12 − 3/10 =
  3. 3.2/5 + 1/2 =
  4. 4.9/10 − 1/3 =
  5. 5.4/5 + 3/4 =
  6. 6.5/7 + 2/8 =
  7. 7.5/8 + 1/10 =
  8. 8.1/2 + 4/6 =
  9. 9.2/7 + 2/7 =
  10. 10.9/11 − 1/2 =
  11. 11.2/8 + 2/6 =
  12. 12.4/6 − 2/6 =
  13. 13.3/4 + 2/3 =
  14. 14.1/5 + 1/3 =
  15. 15.3/4 + 7/11 =
  16. 16.3/6 + 1/4 =
  17. 17.5/10 + 2/4 =
  18. 18.1/9 + 6/8 =
  19. 19.1/3 − 1/8 =
  20. 20.10/12 − 2/9 =
  21. 21.3/5 + 5/6 =
  22. 22.2/3 − 4/11 =
  23. 23.3/4 + 4/7 =
  24. 24.4/11 + 3/9 =
  25. 25.2/5 + 2/9 =
  26. 26.1/3 + 1/3 =
  27. 27.1/2 − 1/10 =
  28. 28.1/5 + 4/6 =
  29. 29.6/11 − 3/12 =
  30. 30.1/6 − 1/7 =
  31. 31.5/9 − 6/12 =
  32. 32.1/4 − 1/8 =
  33. 33.2/3 + 2/3 =
  34. 34.3/5 + 5/7 =
  35. 35.1/2 + 1/2 =
  36. 36.1/12 + 7/10 =
  37. 37.5/12 + 1/2 =
  38. 38.8/10 − 6/8 =
  39. 39.5/7 − 1/2 =
  40. 40.2/7 + 7/8 =

Answer key

  1. 27/28
  2. 11/30
  3. 9/10
  4. 17/30
  5. 31/20
  6. 27/28
  7. 29/40
  8. 7/6
  9. 4/7
  10. 7/22
  11. 7/12
  12. 1/3
  13. 17/12
  14. 8/15
  15. 61/44
  16. 3/4
  17. 1
  18. 31/36
  19. 5/24
  20. 11/18
  21. 43/30
  22. 10/33
  23. 37/28
  24. 23/33
  25. 28/45
  26. 2/3
  27. 2/5
  28. 13/15
  29. 13/44
  30. 1/42
  31. 1/18
  32. 1/8
  33. 4/3
  34. 46/35
  35. 1
  36. 47/60
  37. 11/12
  38. 1/20
  39. 3/14
  40. 65/56

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