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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 768 · 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. 1.2/5 + 4/7 =
  2. 2.2/7 − 2/9 =
  3. 3.5/7 − 1/6 =
  4. 4.2/5 + 2/6 =
  5. 5.6/11 + 7/11 =
  6. 6.2/12 + 1/9 =
  7. 7.2/10 + 1/10 =
  8. 8.4/6 + 1/6 =
  9. 9.4/7 + 3/7 =
  10. 10.1/2 + 1/12 =
  11. 11.3/9 − 1/8 =
  12. 12.5/9 + 1/3 =
  13. 13.1/7 + 5/12 =
  14. 14.1/2 + 4/8 =
  15. 15.1/3 + 1/6 =
  16. 16.5/9 − 5/10 =
  17. 17.5/9 + 1/6 =
  18. 18.1/2 + 2/5 =
  19. 19.6/10 − 6/12 =
  20. 20.5/12 − 1/4 =
  21. 21.6/7 + 3/4 =
  22. 22.1/2 + 1/5 =
  23. 23.2/4 + 1/2 =
  24. 24.1/2 + 6/7 =
  25. 25.8/9 + 4/5 =
  26. 26.1/8 + 2/5 =
  27. 27.1/7 + 4/6 =
  28. 28.3/11 − 2/8 =
  29. 29.6/11 − 3/9 =
  30. 30.5/7 − 2/5 =
  31. 31.2/10 + 1/4 =
  32. 32.4/5 − 2/6 =
  33. 33.7/8 + 3/10 =
  34. 34.3/4 + 3/6 =
  35. 35.2/8 + 3/5 =
  36. 36.5/11 + 2/11 =
  37. 37.1/3 + 6/8 =
  38. 38.1/2 − 1/7 =
  39. 39.1/2 + 1/5 =
  40. 40.8/11 + 10/11 =

Answer key

  1. 34/35
  2. 4/63
  3. 23/42
  4. 11/15
  5. 13/11
  6. 5/18
  7. 3/10
  8. 5/6
  9. 1
  10. 7/12
  11. 5/24
  12. 8/9
  13. 47/84
  14. 1
  15. 1/2
  16. 1/18
  17. 13/18
  18. 9/10
  19. 1/10
  20. 1/6
  21. 45/28
  22. 7/10
  23. 1
  24. 19/14
  25. 76/45
  26. 21/40
  27. 17/21
  28. 1/44
  29. 7/33
  30. 11/35
  31. 9/20
  32. 7/15
  33. 47/40
  34. 5/4
  35. 17/20
  36. 7/11
  37. 13/12
  38. 5/14
  39. 7/10
  40. 18/11

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