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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 362 · 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. 1.4/11 + 1/7 =
  2. 2.2/4 + 1/2 =
  3. 3.7/12 + 5/12 =
  4. 4.6/11 − 4/8 =
  5. 5.2/9 + 3/7 =
  6. 6.3/6 + 3/6 =
  7. 7.4/6 + 6/7 =
  8. 8.3/10 − 1/6 =
  9. 9.1/3 + 5/8 =
  10. 10.5/6 + 9/12 =
  11. 11.1/2 + 3/8 =
  12. 12.7/9 − 5/7 =
  13. 13.6/7 + 3/5 =
  14. 14.3/5 − 4/11 =
  15. 15.2/7 − 1/10 =
  16. 16.1/6 + 2/10 =
  17. 17.4/8 − 3/8 =
  18. 18.5/12 + 3/10 =
  19. 19.6/12 + 1/2 =
  20. 20.2/12 + 3/9 =
  21. 21.1/3 + 1/2 =
  22. 22.8/11 − 1/8 =
  23. 23.2/3 + 2/4 =
  24. 24.2/3 − 1/2 =
  25. 25.4/11 + 6/8 =
  26. 26.1/6 + 7/8 =
  27. 27.2/5 + 4/8 =
  28. 28.10/11 + 2/10 =
  29. 29.5/9 + 9/12 =
  30. 30.4/6 + 8/12 =
  31. 31.7/10 − 2/4 =
  32. 32.3/7 − 1/5 =
  33. 33.5/9 − 1/2 =
  34. 34.1/3 + 2/3 =
  35. 35.1/4 + 1/5 =
  36. 36.6/7 − 4/6 =
  37. 37.1/2 + 5/11 =
  38. 38.4/6 + 5/8 =
  39. 39.9/10 + 3/12 =
  40. 40.4/6 + 2/3 =

Answer key

  1. 39/77
  2. 1
  3. 1
  4. 1/22
  5. 41/63
  6. 1
  7. 32/21
  8. 2/15
  9. 23/24
  10. 19/12
  11. 7/8
  12. 4/63
  13. 51/35
  14. 13/55
  15. 13/70
  16. 11/30
  17. 1/8
  18. 43/60
  19. 1
  20. 1/2
  21. 5/6
  22. 53/88
  23. 7/6
  24. 1/6
  25. 49/44
  26. 25/24
  27. 9/10
  28. 61/55
  29. 47/36
  30. 4/3
  31. 1/5
  32. 8/35
  33. 1/18
  34. 1
  35. 9/20
  36. 4/21
  37. 21/22
  38. 31/24
  39. 23/20
  40. 4/3

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