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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 147 · 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. 1.3/5 − 2/7 =
  2. 2.6/7 + 1/4 =
  3. 3.1/6 − 1/7 =
  4. 4.4/7 − 2/4 =
  5. 5.5/7 − 3/9 =
  6. 6.1/2 + 8/11 =
  7. 7.1/2 + 1/4 =
  8. 8.5/6 − 3/11 =
  9. 9.2/7 + 1/4 =
  10. 10.2/3 − 1/4 =
  11. 11.4/5 + 3/6 =
  12. 12.11/12 − 6/12 =
  13. 13.2/12 + 6/9 =
  14. 14.1/5 + 1/2 =
  15. 15.7/11 + 7/8 =
  16. 16.6/10 + 5/11 =
  17. 17.1/9 + 1/5 =
  18. 18.3/6 + 6/10 =
  19. 19.1/2 + 2/12 =
  20. 20.4/11 + 1/2 =
  21. 21.2/4 − 4/12 =
  22. 22.1/2 − 1/3 =
  23. 23.6/8 + 4/5 =
  24. 24.2/4 + 5/10 =
  25. 25.6/12 + 3/12 =
  26. 26.3/5 + 4/11 =
  27. 27.5/10 − 1/6 =
  28. 28.2/3 − 4/7 =
  29. 29.4/7 + 2/8 =
  30. 30.4/11 + 3/4 =
  31. 31.1/3 − 2/8 =
  32. 32.1/4 + 6/9 =
  33. 33.3/10 + 3/5 =
  34. 34.1/9 + 4/8 =
  35. 35.3/6 + 6/12 =
  36. 36.1/10 + 5/12 =
  37. 37.5/10 + 7/9 =
  38. 38.4/8 + 2/3 =
  39. 39.5/11 + 7/9 =
  40. 40.6/11 − 1/8 =

Answer key

  1. 11/35
  2. 31/28
  3. 1/42
  4. 1/14
  5. 8/21
  6. 27/22
  7. 3/4
  8. 37/66
  9. 15/28
  10. 5/12
  11. 13/10
  12. 5/12
  13. 5/6
  14. 7/10
  15. 133/88
  16. 58/55
  17. 14/45
  18. 11/10
  19. 2/3
  20. 19/22
  21. 1/6
  22. 1/6
  23. 31/20
  24. 1
  25. 3/4
  26. 53/55
  27. 1/3
  28. 2/21
  29. 23/28
  30. 49/44
  31. 1/12
  32. 11/12
  33. 9/10
  34. 11/18
  35. 1
  36. 31/60
  37. 23/18
  38. 7/6
  39. 122/99
  40. 37/88

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