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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 543 · 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. 1.1/8 + 2/12 =
  2. 2.2/4 + 1/3 =
  3. 3.1/4 + 1/2 =
  4. 4.1/2 + 1/4 =
  5. 5.2/5 + 3/11 =
  6. 6.1/4 − 1/11 =
  7. 7.3/4 + 2/3 =
  8. 8.1/2 − 2/8 =
  9. 9.1/2 − 1/9 =
  10. 10.10/11 − 4/5 =
  11. 11.11/12 − 3/4 =
  12. 12.3/6 + 10/12 =
  13. 13.2/7 + 3/9 =
  14. 14.6/11 + 7/8 =
  15. 15.1/4 + 10/12 =
  16. 16.4/5 + 7/8 =
  17. 17.8/10 + 4/11 =
  18. 18.1/5 + 8/10 =
  19. 19.8/10 − 4/9 =
  20. 20.2/3 + 1/3 =
  21. 21.4/5 + 1/11 =
  22. 22.6/9 + 3/10 =
  23. 23.2/6 + 1/3 =
  24. 24.2/3 − 2/4 =
  25. 25.2/4 + 7/8 =
  26. 26.6/8 + 6/8 =
  27. 27.1/3 + 11/12 =
  28. 28.3/4 − 1/4 =
  29. 29.1/9 + 6/7 =
  30. 30.4/8 + 1/2 =
  31. 31.1/7 + 1/11 =
  32. 32.3/4 − 4/6 =
  33. 33.1/3 + 4/5 =
  34. 34.3/4 − 3/12 =
  35. 35.2/3 − 2/5 =
  36. 36.3/7 + 4/11 =
  37. 37.2/6 + 7/9 =
  38. 38.2/5 + 2/4 =
  39. 39.4/12 − 1/12 =
  40. 40.7/8 − 4/10 =

Answer key

  1. 7/24
  2. 5/6
  3. 3/4
  4. 3/4
  5. 37/55
  6. 7/44
  7. 17/12
  8. 1/4
  9. 7/18
  10. 6/55
  11. 1/6
  12. 4/3
  13. 13/21
  14. 125/88
  15. 13/12
  16. 67/40
  17. 64/55
  18. 1
  19. 16/45
  20. 1
  21. 49/55
  22. 29/30
  23. 2/3
  24. 1/6
  25. 11/8
  26. 3/2
  27. 5/4
  28. 1/2
  29. 61/63
  30. 1
  31. 18/77
  32. 1/12
  33. 17/15
  34. 1/2
  35. 4/15
  36. 61/77
  37. 10/9
  38. 9/10
  39. 1/4
  40. 19/40

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