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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 14 · 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. 1.5/9 + 4/5 =
  2. 2.8/10 − 5/9 =
  3. 3.7/8 + 7/11 =
  4. 4.3/11 + 7/10 =
  5. 5.6/8 + 3/12 =
  6. 6.4/6 + 7/8 =
  7. 7.8/12 + 1/7 =
  8. 8.1/7 + 2/3 =
  9. 9.2/7 + 1/3 =
  10. 10.2/11 + 4/11 =
  11. 11.2/11 + 3/8 =
  12. 12.1/9 + 3/12 =
  13. 13.6/8 + 1/11 =
  14. 14.8/10 + 2/6 =
  15. 15.4/12 + 2/7 =
  16. 16.6/7 − 2/10 =
  17. 17.3/11 + 1/7 =
  18. 18.1/2 − 1/11 =
  19. 19.7/9 − 2/8 =
  20. 20.4/5 + 5/10 =
  21. 21.1/2 + 1/2 =
  22. 22.1/2 + 6/8 =
  23. 23.2/5 − 4/11 =
  24. 24.1/2 + 1/2 =
  25. 25.1/2 − 3/11 =
  26. 26.1/12 + 6/9 =
  27. 27.2/3 + 2/4 =
  28. 28.2/12 + 2/3 =
  29. 29.4/7 − 1/3 =
  30. 30.5/8 + 7/12 =
  31. 31.9/12 + 2/5 =
  32. 32.1/2 − 1/5 =
  33. 33.4/11 − 1/5 =
  34. 34.2/3 − 4/7 =
  35. 35.1/5 − 1/8 =
  36. 36.3/9 + 3/6 =
  37. 37.1/4 + 3/4 =
  38. 38.7/8 − 2/7 =
  39. 39.1/2 + 6/10 =
  40. 40.6/9 + 1/3 =

Answer key

  1. 61/45
  2. 11/45
  3. 133/88
  4. 107/110
  5. 1
  6. 37/24
  7. 17/21
  8. 17/21
  9. 13/21
  10. 6/11
  11. 49/88
  12. 13/36
  13. 37/44
  14. 17/15
  15. 13/21
  16. 23/35
  17. 32/77
  18. 9/22
  19. 19/36
  20. 13/10
  21. 1
  22. 5/4
  23. 2/55
  24. 1
  25. 5/22
  26. 3/4
  27. 7/6
  28. 5/6
  29. 5/21
  30. 29/24
  31. 23/20
  32. 3/10
  33. 9/55
  34. 2/21
  35. 3/40
  36. 5/6
  37. 1
  38. 33/56
  39. 11/10
  40. 1

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