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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 229 · 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. 1.1/3 − 1/7 =
  2. 2.2/6 + 2/8 =
  3. 3.2/3 − 3/10 =
  4. 4.7/10 − 2/4 =
  5. 5.5/10 − 1/11 =
  6. 6.9/11 + 1/2 =
  7. 7.2/4 + 2/3 =
  8. 8.1/2 + 7/12 =
  9. 9.1/5 + 3/6 =
  10. 10.2/7 − 3/11 =
  11. 11.1/3 + 8/10 =
  12. 12.7/9 + 1/11 =
  13. 13.7/11 + 1/4 =
  14. 14.1/2 − 1/6 =
  15. 15.1/2 + 4/7 =
  16. 16.3/11 − 3/12 =
  17. 17.6/9 + 2/8 =
  18. 18.4/9 + 5/7 =
  19. 19.6/11 − 2/6 =
  20. 20.1/10 + 1/5 =
  21. 21.1/9 + 2/6 =
  22. 22.1/2 − 1/5 =
  23. 23.1/4 + 3/9 =
  24. 24.1/2 − 2/5 =
  25. 25.2/6 − 1/8 =
  26. 26.1/10 + 2/11 =
  27. 27.2/4 − 1/9 =
  28. 28.3/4 − 3/11 =
  29. 29.1/6 + 2/9 =
  30. 30.1/2 − 4/11 =
  31. 31.2/8 + 4/11 =
  32. 32.4/9 + 2/6 =
  33. 33.3/7 − 4/10 =
  34. 34.3/4 + 2/4 =
  35. 35.1/2 + 3/5 =
  36. 36.1/3 + 1/7 =
  37. 37.1/3 − 2/7 =
  38. 38.4/5 − 1/3 =
  39. 39.3/7 − 1/4 =
  40. 40.5/10 + 2/3 =

Answer key

  1. 4/21
  2. 7/12
  3. 11/30
  4. 1/5
  5. 9/22
  6. 29/22
  7. 7/6
  8. 13/12
  9. 7/10
  10. 1/77
  11. 17/15
  12. 86/99
  13. 39/44
  14. 1/3
  15. 15/14
  16. 1/44
  17. 11/12
  18. 73/63
  19. 7/33
  20. 3/10
  21. 4/9
  22. 3/10
  23. 7/12
  24. 1/10
  25. 5/24
  26. 31/110
  27. 7/18
  28. 21/44
  29. 7/18
  30. 3/22
  31. 27/44
  32. 7/9
  33. 1/35
  34. 5/4
  35. 11/10
  36. 10/21
  37. 1/21
  38. 7/15
  39. 5/28
  40. 7/6

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