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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 236 · 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. 1.5/9 − 2/11 =
  2. 2.2/3 + 2/4 =
  3. 3.2/3 + 4/11 =
  4. 4.8/9 + 4/12 =
  5. 5.8/9 + 1/2 =
  6. 6.1/12 + 1/2 =
  7. 7.2/3 − 2/5 =
  8. 8.4/9 + 1/7 =
  9. 9.9/11 − 1/11 =
  10. 10.5/8 + 4/6 =
  11. 11.2/9 + 1/3 =
  12. 12.7/11 − 1/2 =
  13. 13.11/12 + 4/10 =
  14. 14.5/9 + 2/5 =
  15. 15.2/3 + 1/4 =
  16. 16.1/5 + 4/6 =
  17. 17.5/9 − 2/6 =
  18. 18.9/12 − 1/7 =
  19. 19.8/9 − 7/8 =
  20. 20.5/8 − 3/7 =
  21. 21.4/7 − 1/3 =
  22. 22.6/8 − 2/10 =
  23. 23.1/2 − 1/5 =
  24. 24.5/12 + 2/6 =
  25. 25.7/11 − 3/8 =
  26. 26.1/4 + 4/5 =
  27. 27.8/11 + 2/11 =
  28. 28.3/4 + 1/8 =
  29. 29.6/9 − 1/2 =
  30. 30.1/2 − 3/9 =
  31. 31.8/10 − 2/3 =
  32. 32.1/3 − 2/11 =
  33. 33.2/5 + 3/4 =
  34. 34.2/3 + 1/12 =
  35. 35.3/4 − 4/6 =
  36. 36.1/8 + 9/12 =
  37. 37.2/3 + 6/10 =
  38. 38.1/8 + 3/10 =
  39. 39.5/6 + 1/5 =
  40. 40.8/12 − 1/3 =

Answer key

  1. 37/99
  2. 7/6
  3. 34/33
  4. 11/9
  5. 25/18
  6. 7/12
  7. 4/15
  8. 37/63
  9. 8/11
  10. 31/24
  11. 5/9
  12. 3/22
  13. 79/60
  14. 43/45
  15. 11/12
  16. 13/15
  17. 2/9
  18. 17/28
  19. 1/72
  20. 11/56
  21. 5/21
  22. 11/20
  23. 3/10
  24. 3/4
  25. 23/88
  26. 21/20
  27. 10/11
  28. 7/8
  29. 1/6
  30. 1/6
  31. 2/15
  32. 5/33
  33. 23/20
  34. 3/4
  35. 1/12
  36. 7/8
  37. 19/15
  38. 17/40
  39. 31/30
  40. 1/3

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