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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 669 · 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. 1.6/7 − 3/5 =
  2. 2.1/3 − 1/6 =
  3. 3.2/3 + 1/3 =
  4. 4.9/12 + 4/12 =
  5. 5.2/7 + 1/4 =
  6. 6.6/8 − 1/2 =
  7. 7.10/12 + 7/8 =
  8. 8.3/5 + 8/9 =
  9. 9.3/4 + 6/7 =
  10. 10.1/3 + 1/2 =
  11. 11.1/3 + 2/5 =
  12. 12.6/7 + 2/3 =
  13. 13.2/8 + 10/11 =
  14. 14.1/2 − 3/10 =
  15. 15.5/9 − 2/10 =
  16. 16.3/7 + 1/4 =
  17. 17.7/9 + 5/8 =
  18. 18.1/2 + 2/3 =
  19. 19.3/6 − 1/5 =
  20. 20.1/11 + 3/10 =
  21. 21.6/8 − 1/4 =
  22. 22.5/12 + 4/6 =
  23. 23.5/11 + 2/3 =
  24. 24.4/5 − 3/5 =
  25. 25.1/3 + 1/5 =
  26. 26.1/4 − 1/7 =
  27. 27.1/3 + 3/8 =
  28. 28.2/5 + 1/2 =
  29. 29.4/5 − 8/12 =
  30. 30.4/12 + 7/8 =
  31. 31.6/11 − 2/4 =
  32. 32.6/8 − 1/7 =
  33. 33.1/3 + 9/12 =
  34. 34.9/10 + 3/8 =
  35. 35.1/2 + 4/6 =
  36. 36.1/5 + 3/6 =
  37. 37.1/2 + 4/9 =
  38. 38.6/7 − 2/7 =
  39. 39.1/2 + 1/9 =
  40. 40.1/3 + 9/11 =

Answer key

  1. 9/35
  2. 1/6
  3. 1
  4. 13/12
  5. 15/28
  6. 1/4
  7. 41/24
  8. 67/45
  9. 45/28
  10. 5/6
  11. 11/15
  12. 32/21
  13. 51/44
  14. 1/5
  15. 16/45
  16. 19/28
  17. 101/72
  18. 7/6
  19. 3/10
  20. 43/110
  21. 1/2
  22. 13/12
  23. 37/33
  24. 1/5
  25. 8/15
  26. 3/28
  27. 17/24
  28. 9/10
  29. 2/15
  30. 29/24
  31. 1/22
  32. 17/28
  33. 13/12
  34. 51/40
  35. 7/6
  36. 7/10
  37. 17/18
  38. 4/7
  39. 11/18
  40. 38/33

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