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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 347 · 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. 1.2/7 − 1/11 =
  2. 2.8/9 + 9/11 =
  3. 3.3/4 − 4/9 =
  4. 4.1/2 + 9/12 =
  5. 5.1/2 + 1/4 =
  6. 6.3/4 + 1/3 =
  7. 7.9/10 + 1/2 =
  8. 8.1/6 + 2/9 =
  9. 9.5/10 + 1/4 =
  10. 10.2/3 + 10/11 =
  11. 11.3/10 − 1/5 =
  12. 12.4/9 + 4/7 =
  13. 13.8/10 − 7/12 =
  14. 14.9/12 − 1/12 =
  15. 15.2/4 + 6/11 =
  16. 16.7/12 − 4/8 =
  17. 17.1/2 + 10/11 =
  18. 18.7/8 + 1/4 =
  19. 19.3/4 − 1/7 =
  20. 20.3/9 − 1/8 =
  21. 21.1/3 − 2/8 =
  22. 22.3/5 + 4/6 =
  23. 23.4/5 − 1/11 =
  24. 24.6/9 − 1/5 =
  25. 25.2/4 − 1/3 =
  26. 26.5/6 + 1/3 =
  27. 27.4/5 + 1/3 =
  28. 28.1/3 − 2/9 =
  29. 29.2/3 + 6/9 =
  30. 30.7/9 − 3/4 =
  31. 31.3/8 + 1/2 =
  32. 32.1/4 + 4/7 =
  33. 33.2/3 + 3/6 =
  34. 34.2/3 − 1/4 =
  35. 35.6/7 − 1/2 =
  36. 36.4/10 − 4/12 =
  37. 37.7/10 − 1/2 =
  38. 38.4/10 + 6/8 =
  39. 39.3/11 + 1/4 =
  40. 40.4/12 + 2/3 =

Answer key

  1. 15/77
  2. 169/99
  3. 11/36
  4. 5/4
  5. 3/4
  6. 13/12
  7. 7/5
  8. 7/18
  9. 3/4
  10. 52/33
  11. 1/10
  12. 64/63
  13. 13/60
  14. 2/3
  15. 23/22
  16. 1/12
  17. 31/22
  18. 9/8
  19. 17/28
  20. 5/24
  21. 1/12
  22. 19/15
  23. 39/55
  24. 7/15
  25. 1/6
  26. 7/6
  27. 17/15
  28. 1/9
  29. 4/3
  30. 1/36
  31. 7/8
  32. 23/28
  33. 7/6
  34. 5/12
  35. 5/14
  36. 1/15
  37. 1/5
  38. 23/20
  39. 23/44
  40. 1

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