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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 609 · 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. 1.2/12 + 2/4 =
  2. 2.8/11 − 1/2 =
  3. 3.1/5 + 4/10 =
  4. 4.10/12 + 4/9 =
  5. 5.3/6 + 1/3 =
  6. 6.3/8 − 2/8 =
  7. 7.2/3 − 4/7 =
  8. 8.2/5 + 5/11 =
  9. 9.4/12 + 1/2 =
  10. 10.1/9 + 2/3 =
  11. 11.1/8 + 2/5 =
  12. 12.5/12 + 2/11 =
  13. 13.2/5 + 1/3 =
  14. 14.1/3 + 8/12 =
  15. 15.10/11 − 4/6 =
  16. 16.1/3 − 1/10 =
  17. 17.2/12 + 2/10 =
  18. 18.2/3 − 2/9 =
  19. 19.3/9 + 3/4 =
  20. 20.8/12 − 1/9 =
  21. 21.8/10 − 2/4 =
  22. 22.2/3 + 2/4 =
  23. 23.1/2 − 3/12 =
  24. 24.6/11 + 2/4 =
  25. 25.4/7 + 2/7 =
  26. 26.1/3 − 2/8 =
  27. 27.4/5 + 1/11 =
  28. 28.2/10 + 1/2 =
  29. 29.2/12 + 1/4 =
  30. 30.5/9 − 4/10 =
  31. 31.3/7 + 2/5 =
  32. 32.5/6 − 7/12 =
  33. 33.1/9 + 6/11 =
  34. 34.2/5 + 4/6 =
  35. 35.1/3 + 1/6 =
  36. 36.2/6 + 8/11 =
  37. 37.3/5 − 4/10 =
  38. 38.5/10 + 7/10 =
  39. 39.4/5 + 7/9 =
  40. 40.1/3 + 2/7 =

Answer key

  1. 2/3
  2. 5/22
  3. 3/5
  4. 23/18
  5. 5/6
  6. 1/8
  7. 2/21
  8. 47/55
  9. 5/6
  10. 7/9
  11. 21/40
  12. 79/132
  13. 11/15
  14. 1
  15. 8/33
  16. 7/30
  17. 11/30
  18. 4/9
  19. 13/12
  20. 5/9
  21. 3/10
  22. 7/6
  23. 1/4
  24. 23/22
  25. 6/7
  26. 1/12
  27. 49/55
  28. 7/10
  29. 5/12
  30. 7/45
  31. 29/35
  32. 1/4
  33. 65/99
  34. 16/15
  35. 1/2
  36. 35/33
  37. 1/5
  38. 6/5
  39. 71/45
  40. 13/21

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