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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 829 · 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 − 6/11 =
  2. 2.10/12 − 2/5 =
  3. 3.2/8 + 3/7 =
  4. 4.2/7 + 8/9 =
  5. 5.7/10 + 1/2 =
  6. 6.1/2 − 3/11 =
  7. 7.4/9 + 2/3 =
  8. 8.3/4 − 1/4 =
  9. 9.1/4 + 5/6 =
  10. 10.6/10 − 5/9 =
  11. 11.10/11 − 1/5 =
  12. 12.1/7 + 2/4 =
  13. 13.2/6 + 4/6 =
  14. 14.8/9 − 3/4 =
  15. 15.3/4 − 1/2 =
  16. 16.6/10 + 1/11 =
  17. 17.2/3 + 2/3 =
  18. 18.3/9 + 4/7 =
  19. 19.9/10 + 1/5 =
  20. 20.10/11 − 1/4 =
  21. 21.6/12 + 4/12 =
  22. 22.2/3 − 3/9 =
  23. 23.7/9 + 1/8 =
  24. 24.1/2 + 1/2 =
  25. 25.6/8 + 1/7 =
  26. 26.1/2 − 2/12 =
  27. 27.5/6 + 2/3 =
  28. 28.2/3 + 3/10 =
  29. 29.5/7 − 2/5 =
  30. 30.1/2 + 2/3 =
  31. 31.7/9 + 1/2 =
  32. 32.3/10 − 1/11 =
  33. 33.2/6 + 4/11 =
  34. 34.3/5 + 3/9 =
  35. 35.1/3 + 3/9 =
  36. 36.1/3 + 3/4 =
  37. 37.1/2 + 4/10 =
  38. 38.3/11 − 2/10 =
  39. 39.2/9 + 2/6 =
  40. 40.5/10 − 3/10 =

Answer key

  1. 2/77
  2. 13/30
  3. 19/28
  4. 74/63
  5. 6/5
  6. 5/22
  7. 10/9
  8. 1/2
  9. 13/12
  10. 2/45
  11. 39/55
  12. 9/14
  13. 1
  14. 5/36
  15. 1/4
  16. 38/55
  17. 4/3
  18. 19/21
  19. 11/10
  20. 29/44
  21. 5/6
  22. 1/3
  23. 65/72
  24. 1
  25. 25/28
  26. 1/3
  27. 3/2
  28. 29/30
  29. 11/35
  30. 7/6
  31. 23/18
  32. 23/110
  33. 23/33
  34. 14/15
  35. 2/3
  36. 13/12
  37. 9/10
  38. 4/55
  39. 5/9
  40. 1/5

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