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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 950 · 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. 1.2/3 − 4/7 =
  2. 2.1/4 + 6/11 =
  3. 3.1/3 + 8/9 =
  4. 4.7/9 + 5/7 =
  5. 5.6/7 − 2/7 =
  6. 6.7/11 − 1/3 =
  7. 7.4/9 + 2/10 =
  8. 8.2/3 + 2/3 =
  9. 9.1/3 + 1/2 =
  10. 10.3/8 − 4/11 =
  11. 11.8/12 + 7/11 =
  12. 12.1/2 + 6/7 =
  13. 13.5/10 + 1/3 =
  14. 14.6/7 + 1/3 =
  15. 15.1/2 + 2/3 =
  16. 16.8/9 − 1/6 =
  17. 17.6/8 + 5/11 =
  18. 18.3/8 − 1/7 =
  19. 19.7/11 − 2/4 =
  20. 20.2/3 − 7/12 =
  21. 21.3/10 + 2/3 =
  22. 22.3/5 + 5/7 =
  23. 23.6/9 − 3/11 =
  24. 24.4/8 − 2/10 =
  25. 25.6/8 + 2/8 =
  26. 26.2/6 + 2/4 =
  27. 27.2/6 + 2/6 =
  28. 28.5/6 + 3/4 =
  29. 29.1/2 + 1/2 =
  30. 30.2/3 − 1/11 =
  31. 31.1/3 + 1/8 =
  32. 32.2/7 + 4/9 =
  33. 33.4/10 + 1/7 =
  34. 34.10/11 + 3/5 =
  35. 35.1/2 + 3/6 =
  36. 36.2/7 + 1/2 =
  37. 37.4/5 + 1/2 =
  38. 38.1/3 + 2/10 =
  39. 39.5/8 + 2/5 =
  40. 40.1/3 + 3/4 =

Answer key

  1. 2/21
  2. 35/44
  3. 11/9
  4. 94/63
  5. 4/7
  6. 10/33
  7. 29/45
  8. 4/3
  9. 5/6
  10. 1/88
  11. 43/33
  12. 19/14
  13. 5/6
  14. 25/21
  15. 7/6
  16. 13/18
  17. 53/44
  18. 13/56
  19. 3/22
  20. 1/12
  21. 29/30
  22. 46/35
  23. 13/33
  24. 3/10
  25. 1
  26. 5/6
  27. 2/3
  28. 19/12
  29. 1
  30. 19/33
  31. 11/24
  32. 46/63
  33. 19/35
  34. 83/55
  35. 1
  36. 11/14
  37. 13/10
  38. 8/15
  39. 41/40
  40. 13/12

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