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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 635 · 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 − 3/5 =
  2. 2.7/9 − 5/11 =
  3. 3.6/12 + 2/4 =
  4. 4.4/6 + 1/3 =
  5. 5.7/11 + 4/7 =
  6. 6.1/12 + 1/4 =
  7. 7.2/5 + 2/12 =
  8. 8.7/11 + 2/4 =
  9. 9.1/4 + 1/2 =
  10. 10.3/5 + 6/10 =
  11. 11.4/5 + 3/4 =
  12. 12.1/2 − 1/4 =
  13. 13.3/5 + 1/7 =
  14. 14.5/6 − 2/4 =
  15. 15.6/8 + 1/4 =
  16. 16.7/12 − 1/4 =
  17. 17.2/5 + 1/2 =
  18. 18.6/7 − 1/3 =
  19. 19.6/11 − 2/5 =
  20. 20.1/4 − 2/11 =
  21. 21.2/3 + 3/7 =
  22. 22.3/12 − 1/11 =
  23. 23.5/8 − 2/6 =
  24. 24.8/9 + 4/11 =
  25. 25.1/6 + 3/6 =
  26. 26.7/9 + 4/8 =
  27. 27.2/3 + 2/4 =
  28. 28.5/8 + 1/6 =
  29. 29.1/3 − 1/12 =
  30. 30.1/4 + 2/6 =
  31. 31.2/10 + 7/9 =
  32. 32.2/5 + 8/11 =
  33. 33.2/3 − 1/3 =
  34. 34.7/9 − 2/7 =
  35. 35.3/5 + 2/7 =
  36. 36.1/2 + 2/3 =
  37. 37.10/11 − 7/10 =
  38. 38.2/5 + 2/3 =
  39. 39.5/6 − 1/2 =
  40. 40.1/2 + 1/2 =

Answer key

  1. 1/40
  2. 32/99
  3. 1
  4. 1
  5. 93/77
  6. 1/3
  7. 17/30
  8. 25/22
  9. 3/4
  10. 6/5
  11. 31/20
  12. 1/4
  13. 26/35
  14. 1/3
  15. 1
  16. 1/3
  17. 9/10
  18. 11/21
  19. 8/55
  20. 3/44
  21. 23/21
  22. 7/44
  23. 7/24
  24. 124/99
  25. 2/3
  26. 23/18
  27. 7/6
  28. 19/24
  29. 1/4
  30. 7/12
  31. 44/45
  32. 62/55
  33. 1/3
  34. 31/63
  35. 31/35
  36. 7/6
  37. 23/110
  38. 16/15
  39. 1/3
  40. 1

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