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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 182 · 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. 1.5/8 − 2/4 =
  2. 2.4/7 + 5/9 =
  3. 3.1/11 + 2/3 =
  4. 4.9/12 + 4/7 =
  5. 5.2/11 + 1/12 =
  6. 6.7/9 − 1/2 =
  7. 7.3/5 − 1/8 =
  8. 8.5/8 + 1/7 =
  9. 9.6/12 + 4/11 =
  10. 10.4/9 + 4/9 =
  11. 11.6/7 − 2/5 =
  12. 12.1/2 + 2/8 =
  13. 13.2/12 + 7/8 =
  14. 14.9/10 − 2/3 =
  15. 15.1/3 + 1/2 =
  16. 16.2/5 − 1/7 =
  17. 17.2/9 − 2/10 =
  18. 18.8/11 + 6/7 =
  19. 19.3/9 + 7/10 =
  20. 20.4/6 + 1/4 =
  21. 21.7/9 − 5/8 =
  22. 22.1/4 − 1/5 =
  23. 23.5/6 + 1/8 =
  24. 24.2/6 + 7/8 =
  25. 25.1/3 + 2/6 =
  26. 26.2/3 − 1/6 =
  27. 27.5/7 − 1/5 =
  28. 28.1/5 + 2/5 =
  29. 29.5/8 − 1/7 =
  30. 30.2/3 − 2/5 =
  31. 31.4/7 + 4/10 =
  32. 32.6/12 + 3/4 =
  33. 33.1/2 + 8/9 =
  34. 34.1/5 − 1/8 =
  35. 35.4/5 − 4/7 =
  36. 36.1/3 + 1/11 =
  37. 37.2/3 − 1/8 =
  38. 38.8/12 − 2/7 =
  39. 39.2/3 − 1/8 =
  40. 40.2/6 − 1/4 =

Answer key

  1. 1/8
  2. 71/63
  3. 25/33
  4. 37/28
  5. 35/132
  6. 5/18
  7. 19/40
  8. 43/56
  9. 19/22
  10. 8/9
  11. 16/35
  12. 3/4
  13. 25/24
  14. 7/30
  15. 5/6
  16. 9/35
  17. 1/45
  18. 122/77
  19. 31/30
  20. 11/12
  21. 11/72
  22. 1/20
  23. 23/24
  24. 29/24
  25. 2/3
  26. 1/2
  27. 18/35
  28. 3/5
  29. 27/56
  30. 4/15
  31. 34/35
  32. 5/4
  33. 25/18
  34. 3/40
  35. 8/35
  36. 14/33
  37. 13/24
  38. 8/21
  39. 13/24
  40. 1/12

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