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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 651 · 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. 1.3/6 + 2/10 =
  2. 2.4/10 + 3/4 =
  3. 3.5/10 + 1/2 =
  4. 4.2/7 + 1/6 =
  5. 5.9/10 + 2/9 =
  6. 6.9/10 − 1/5 =
  7. 7.7/12 − 3/11 =
  8. 8.4/6 − 1/2 =
  9. 9.3/10 + 1/4 =
  10. 10.5/6 − 1/3 =
  11. 11.3/7 + 2/6 =
  12. 12.4/11 + 3/6 =
  13. 13.6/11 − 1/3 =
  14. 14.8/11 − 1/11 =
  15. 15.8/12 − 1/7 =
  16. 16.10/11 − 7/11 =
  17. 17.5/7 − 1/4 =
  18. 18.3/4 + 1/12 =
  19. 19.2/6 + 2/5 =
  20. 20.2/12 + 2/3 =
  21. 21.4/9 + 8/11 =
  22. 22.7/8 − 7/9 =
  23. 23.2/3 + 2/5 =
  24. 24.2/8 + 2/3 =
  25. 25.3/12 + 1/4 =
  26. 26.2/3 − 1/5 =
  27. 27.3/4 + 7/10 =
  28. 28.3/4 + 1/10 =
  29. 29.5/9 − 2/9 =
  30. 30.2/8 + 1/3 =
  31. 31.6/9 + 1/3 =
  32. 32.2/4 + 1/9 =
  33. 33.7/12 − 1/2 =
  34. 34.4/10 + 2/3 =
  35. 35.4/5 − 6/11 =
  36. 36.3/6 − 1/12 =
  37. 37.1/12 + 5/6 =
  38. 38.2/3 − 2/7 =
  39. 39.5/8 + 10/11 =
  40. 40.1/2 + 1/2 =

Answer key

  1. 7/10
  2. 23/20
  3. 1
  4. 19/42
  5. 101/90
  6. 7/10
  7. 41/132
  8. 1/6
  9. 11/20
  10. 1/2
  11. 16/21
  12. 19/22
  13. 7/33
  14. 7/11
  15. 11/21
  16. 3/11
  17. 13/28
  18. 5/6
  19. 11/15
  20. 5/6
  21. 116/99
  22. 7/72
  23. 16/15
  24. 11/12
  25. 1/2
  26. 7/15
  27. 29/20
  28. 17/20
  29. 1/3
  30. 7/12
  31. 1
  32. 11/18
  33. 1/12
  34. 16/15
  35. 14/55
  36. 5/12
  37. 11/12
  38. 8/21
  39. 135/88
  40. 1

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