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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 86 · 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 + 8/11 =
  2. 2.1/2 + 1/2 =
  3. 3.7/8 − 3/4 =
  4. 4.2/3 + 2/3 =
  5. 5.7/9 + 1/5 =
  6. 6.1/5 + 2/6 =
  7. 7.5/6 − 9/12 =
  8. 8.2/4 − 2/11 =
  9. 9.1/3 + 1/2 =
  10. 10.5/6 + 3/8 =
  11. 11.3/4 + 1/7 =
  12. 12.4/11 + 1/2 =
  13. 13.5/6 + 7/12 =
  14. 14.3/4 − 2/5 =
  15. 15.3/4 + 1/5 =
  16. 16.6/12 − 1/3 =
  17. 17.4/8 + 2/10 =
  18. 18.1/11 + 1/4 =
  19. 19.5/6 + 6/8 =
  20. 20.10/11 + 3/4 =
  21. 21.1/8 + 3/10 =
  22. 22.1/3 + 4/5 =
  23. 23.7/9 + 1/7 =
  24. 24.1/7 + 2/3 =
  25. 25.1/8 + 1/3 =
  26. 26.4/9 + 4/9 =
  27. 27.6/10 + 1/2 =
  28. 28.1/4 + 4/8 =
  29. 29.5/8 − 3/7 =
  30. 30.3/5 − 5/11 =
  31. 31.3/9 + 1/7 =
  32. 32.1/3 + 3/11 =
  33. 33.9/10 − 1/2 =
  34. 34.3/7 − 3/8 =
  35. 35.4/6 − 1/4 =
  36. 36.5/12 − 2/8 =
  37. 37.1/2 + 1/3 =
  38. 38.3/8 + 4/6 =
  39. 39.6/8 + 1/7 =
  40. 40.2/4 − 1/12 =

Answer key

  1. 46/33
  2. 1
  3. 1/8
  4. 4/3
  5. 44/45
  6. 8/15
  7. 1/12
  8. 7/22
  9. 5/6
  10. 29/24
  11. 25/28
  12. 19/22
  13. 17/12
  14. 7/20
  15. 19/20
  16. 1/6
  17. 7/10
  18. 15/44
  19. 19/12
  20. 73/44
  21. 17/40
  22. 17/15
  23. 58/63
  24. 17/21
  25. 11/24
  26. 8/9
  27. 11/10
  28. 3/4
  29. 11/56
  30. 8/55
  31. 10/21
  32. 20/33
  33. 2/5
  34. 3/56
  35. 5/12
  36. 1/6
  37. 5/6
  38. 25/24
  39. 25/28
  40. 5/12

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