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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 766 · 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. 1.3/4 + 7/8 =
  2. 2.8/10 − 5/7 =
  3. 3.1/2 − 1/5 =
  4. 4.1/2 + 1/2 =
  5. 5.7/11 − 1/12 =
  6. 6.2/3 − 2/8 =
  7. 7.7/10 + 6/8 =
  8. 8.5/11 − 3/8 =
  9. 9.6/9 − 1/7 =
  10. 10.5/8 + 2/3 =
  11. 11.1/7 + 8/9 =
  12. 12.2/3 + 5/11 =
  13. 13.2/3 + 2/12 =
  14. 14.5/9 + 1/4 =
  15. 15.9/11 − 2/11 =
  16. 16.2/5 − 1/5 =
  17. 17.3/9 + 1/3 =
  18. 18.1/10 + 1/12 =
  19. 19.6/9 − 1/2 =
  20. 20.1/2 + 2/3 =
  21. 21.9/11 + 1/2 =
  22. 22.6/12 + 1/2 =
  23. 23.7/12 − 5/12 =
  24. 24.5/6 − 1/2 =
  25. 25.4/5 − 2/3 =
  26. 26.4/6 + 5/6 =
  27. 27.6/7 + 3/8 =
  28. 28.2/6 + 1/6 =
  29. 29.4/10 + 1/2 =
  30. 30.8/11 − 4/7 =
  31. 31.5/7 + 4/6 =
  32. 32.3/4 + 1/3 =
  33. 33.3/7 + 1/3 =
  34. 34.2/3 + 4/5 =
  35. 35.2/4 − 1/4 =
  36. 36.1/5 − 1/11 =
  37. 37.4/11 − 2/7 =
  38. 38.1/2 + 1/2 =
  39. 39.1/5 + 9/10 =
  40. 40.1/2 + 5/7 =

Answer key

  1. 13/8
  2. 3/35
  3. 3/10
  4. 1
  5. 73/132
  6. 5/12
  7. 29/20
  8. 7/88
  9. 11/21
  10. 31/24
  11. 65/63
  12. 37/33
  13. 5/6
  14. 29/36
  15. 7/11
  16. 1/5
  17. 2/3
  18. 11/60
  19. 1/6
  20. 7/6
  21. 29/22
  22. 1
  23. 1/6
  24. 1/3
  25. 2/15
  26. 3/2
  27. 69/56
  28. 1/2
  29. 9/10
  30. 12/77
  31. 29/21
  32. 13/12
  33. 16/21
  34. 22/15
  35. 1/4
  36. 6/55
  37. 6/77
  38. 1
  39. 11/10
  40. 17/14

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