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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 503 · 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. 1.2/8 + 3/7 =
  2. 2.3/10 + 1/3 =
  3. 3.9/10 + 9/11 =
  4. 4.1/4 + 2/8 =
  5. 5.4/8 + 2/5 =
  6. 6.10/11 − 4/8 =
  7. 7.1/2 + 8/12 =
  8. 8.5/6 − 2/3 =
  9. 9.4/10 + 1/4 =
  10. 10.1/3 + 1/11 =
  11. 11.1/7 − 1/8 =
  12. 12.2/4 + 1/10 =
  13. 13.5/8 − 1/4 =
  14. 14.1/4 + 1/2 =
  15. 15.2/5 + 6/12 =
  16. 16.7/10 − 3/5 =
  17. 17.3/6 + 5/9 =
  18. 18.7/8 − 3/11 =
  19. 19.7/10 + 7/11 =
  20. 20.1/3 − 3/10 =
  21. 21.7/11 + 1/8 =
  22. 22.2/5 + 1/7 =
  23. 23.1/2 + 2/3 =
  24. 24.4/7 + 3/7 =
  25. 25.4/5 − 1/5 =
  26. 26.2/3 + 1/2 =
  27. 27.1/10 + 5/11 =
  28. 28.6/7 + 2/3 =
  29. 29.2/12 + 11/12 =
  30. 30.9/10 − 1/2 =
  31. 31.1/2 + 3/5 =
  32. 32.6/7 + 3/10 =
  33. 33.1/2 − 1/7 =
  34. 34.3/10 + 1/12 =
  35. 35.1/3 − 2/8 =
  36. 36.1/6 + 1/3 =
  37. 37.2/8 + 8/9 =
  38. 38.2/6 − 2/7 =
  39. 39.6/8 − 5/9 =
  40. 40.1/4 + 4/5 =

Answer key

  1. 19/28
  2. 19/30
  3. 189/110
  4. 1/2
  5. 9/10
  6. 9/22
  7. 7/6
  8. 1/6
  9. 13/20
  10. 14/33
  11. 1/56
  12. 3/5
  13. 3/8
  14. 3/4
  15. 9/10
  16. 1/10
  17. 19/18
  18. 53/88
  19. 147/110
  20. 1/30
  21. 67/88
  22. 19/35
  23. 7/6
  24. 1
  25. 3/5
  26. 7/6
  27. 61/110
  28. 32/21
  29. 13/12
  30. 2/5
  31. 11/10
  32. 81/70
  33. 5/14
  34. 23/60
  35. 1/12
  36. 1/2
  37. 41/36
  38. 1/21
  39. 7/36
  40. 21/20

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