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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 932 · 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. 1.1/3 + 5/7 =
  2. 2.5/9 + 6/8 =
  3. 3.2/4 + 1/8 =
  4. 4.2/10 + 1/2 =
  5. 5.2/3 + 1/2 =
  6. 6.6/9 − 1/2 =
  7. 7.1/6 + 1/3 =
  8. 8.5/6 − 1/5 =
  9. 9.8/12 + 3/5 =
  10. 10.4/7 − 1/2 =
  11. 11.1/6 + 10/11 =
  12. 12.2/6 − 1/6 =
  13. 13.7/12 + 5/11 =
  14. 14.2/4 + 4/7 =
  15. 15.1/3 − 1/9 =
  16. 16.2/3 + 2/5 =
  17. 17.3/6 + 5/10 =
  18. 18.4/5 − 2/7 =
  19. 19.4/12 + 4/7 =
  20. 20.1/2 + 1/6 =
  21. 21.6/9 + 3/4 =
  22. 22.7/10 + 2/7 =
  23. 23.1/8 + 1/2 =
  24. 24.5/8 − 5/10 =
  25. 25.1/4 + 3/12 =
  26. 26.1/3 + 1/2 =
  27. 27.6/7 − 1/4 =
  28. 28.3/8 − 1/10 =
  29. 29.6/11 + 10/12 =
  30. 30.7/9 − 3/7 =
  31. 31.1/3 + 5/10 =
  32. 32.2/10 + 1/11 =
  33. 33.4/11 − 1/6 =
  34. 34.6/7 + 1/2 =
  35. 35.1/2 + 4/12 =
  36. 36.5/10 − 1/7 =
  37. 37.4/5 + 1/2 =
  38. 38.7/10 − 1/4 =
  39. 39.1/4 + 6/12 =
  40. 40.2/3 − 2/7 =

Answer key

  1. 22/21
  2. 47/36
  3. 5/8
  4. 7/10
  5. 7/6
  6. 1/6
  7. 1/2
  8. 19/30
  9. 19/15
  10. 1/14
  11. 71/66
  12. 1/6
  13. 137/132
  14. 15/14
  15. 2/9
  16. 16/15
  17. 1
  18. 18/35
  19. 19/21
  20. 2/3
  21. 17/12
  22. 69/70
  23. 5/8
  24. 1/8
  25. 1/2
  26. 5/6
  27. 17/28
  28. 11/40
  29. 91/66
  30. 22/63
  31. 5/6
  32. 16/55
  33. 13/66
  34. 19/14
  35. 5/6
  36. 5/14
  37. 13/10
  38. 9/20
  39. 3/4
  40. 8/21

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