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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 410 · 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. 1.4/9 + 1/5 =
  2. 2.5/7 + 8/12 =
  3. 3.5/12 + 3/8 =
  4. 4.2/3 + 2/4 =
  5. 5.7/11 − 1/2 =
  6. 6.3/6 − 3/12 =
  7. 7.2/10 + 2/7 =
  8. 8.2/6 + 5/12 =
  9. 9.4/6 − 1/2 =
  10. 10.8/11 + 2/6 =
  11. 11.3/5 − 1/4 =
  12. 12.8/12 + 3/8 =
  13. 13.2/7 + 2/5 =
  14. 14.3/7 + 2/3 =
  15. 15.2/8 − 1/9 =
  16. 16.8/12 − 6/10 =
  17. 17.3/5 − 5/11 =
  18. 18.5/9 + 7/12 =
  19. 19.1/9 + 1/9 =
  20. 20.9/11 − 1/5 =
  21. 21.3/4 − 3/9 =
  22. 22.1/10 − 1/11 =
  23. 23.8/9 − 1/2 =
  24. 24.5/6 − 9/12 =
  25. 25.4/11 + 1/7 =
  26. 26.10/12 + 1/4 =
  27. 27.6/12 + 1/2 =
  28. 28.2/4 + 1/3 =
  29. 29.5/10 + 1/5 =
  30. 30.2/12 + 11/12 =
  31. 31.6/12 − 2/9 =
  32. 32.5/11 − 1/5 =
  33. 33.3/4 + 10/11 =
  34. 34.4/5 + 1/7 =
  35. 35.9/12 − 5/11 =
  36. 36.6/11 + 2/4 =
  37. 37.1/2 + 8/9 =
  38. 38.7/9 − 2/4 =
  39. 39.3/11 + 1/4 =
  40. 40.3/4 + 2/7 =

Answer key

  1. 29/45
  2. 29/21
  3. 19/24
  4. 7/6
  5. 3/22
  6. 1/4
  7. 17/35
  8. 3/4
  9. 1/6
  10. 35/33
  11. 7/20
  12. 25/24
  13. 24/35
  14. 23/21
  15. 5/36
  16. 1/15
  17. 8/55
  18. 41/36
  19. 2/9
  20. 34/55
  21. 5/12
  22. 1/110
  23. 7/18
  24. 1/12
  25. 39/77
  26. 13/12
  27. 1
  28. 5/6
  29. 7/10
  30. 13/12
  31. 5/18
  32. 14/55
  33. 73/44
  34. 33/35
  35. 13/44
  36. 23/22
  37. 25/18
  38. 5/18
  39. 23/44
  40. 29/28

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