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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 481 · 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. 1.1/10 + 6/9 =
  2. 2.3/4 − 2/6 =
  3. 3.7/10 + 1/11 =
  4. 4.1/2 + 9/12 =
  5. 5.4/7 − 1/3 =
  6. 6.9/11 + 1/5 =
  7. 7.1/10 + 7/8 =
  8. 8.2/5 − 3/8 =
  9. 9.3/5 + 3/9 =
  10. 10.2/12 + 2/5 =
  11. 11.6/11 + 2/4 =
  12. 12.2/4 + 8/9 =
  13. 13.5/6 + 2/10 =
  14. 14.6/9 − 1/7 =
  15. 15.3/4 + 1/6 =
  16. 16.1/8 + 3/7 =
  17. 17.1/6 − 1/7 =
  18. 18.5/10 − 3/11 =
  19. 19.10/12 + 4/5 =
  20. 20.2/3 − 1/2 =
  21. 21.3/6 − 1/4 =
  22. 22.5/6 + 2/7 =
  23. 23.5/7 + 7/9 =
  24. 24.2/3 + 3/6 =
  25. 25.9/10 + 3/6 =
  26. 26.1/8 + 3/9 =
  27. 27.1/7 + 7/9 =
  28. 28.3/5 + 5/9 =
  29. 29.1/2 + 3/12 =
  30. 30.4/8 − 1/3 =
  31. 31.6/8 − 3/8 =
  32. 32.9/12 + 2/6 =
  33. 33.9/11 − 5/9 =
  34. 34.3/5 + 4/8 =
  35. 35.1/4 + 1/2 =
  36. 36.5/8 − 1/2 =
  37. 37.4/5 + 1/2 =
  38. 38.2/9 + 2/9 =
  39. 39.4/5 + 2/5 =
  40. 40.1/2 + 3/10 =

Answer key

  1. 23/30
  2. 5/12
  3. 87/110
  4. 5/4
  5. 5/21
  6. 56/55
  7. 39/40
  8. 1/40
  9. 14/15
  10. 17/30
  11. 23/22
  12. 25/18
  13. 31/30
  14. 11/21
  15. 11/12
  16. 31/56
  17. 1/42
  18. 5/22
  19. 49/30
  20. 1/6
  21. 1/4
  22. 47/42
  23. 94/63
  24. 7/6
  25. 7/5
  26. 11/24
  27. 58/63
  28. 52/45
  29. 3/4
  30. 1/6
  31. 3/8
  32. 13/12
  33. 26/99
  34. 11/10
  35. 3/4
  36. 1/8
  37. 13/10
  38. 4/9
  39. 6/5
  40. 4/5

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