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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 946 · 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. 1.3/9 + 8/11 =
  2. 2.7/8 − 3/5 =
  3. 3.5/10 + 1/2 =
  4. 4.1/10 + 8/10 =
  5. 5.1/6 − 1/12 =
  6. 6.1/2 − 5/11 =
  7. 7.1/3 + 2/11 =
  8. 8.5/9 − 2/7 =
  9. 9.4/9 + 3/10 =
  10. 10.2/3 + 1/12 =
  11. 11.2/3 − 3/5 =
  12. 12.4/8 − 3/7 =
  13. 13.2/4 − 2/9 =
  14. 14.2/3 + 6/9 =
  15. 15.1/7 + 1/7 =
  16. 16.3/7 − 1/9 =
  17. 17.7/12 + 1/6 =
  18. 18.2/10 + 5/11 =
  19. 19.2/3 + 1/4 =
  20. 20.3/5 − 1/5 =
  21. 21.8/10 + 1/4 =
  22. 22.3/5 − 3/6 =
  23. 23.2/5 − 1/3 =
  24. 24.1/3 + 3/5 =
  25. 25.5/6 + 1/9 =
  26. 26.8/10 + 3/5 =
  27. 27.1/2 + 10/12 =
  28. 28.5/9 − 2/4 =
  29. 29.4/7 + 4/11 =
  30. 30.5/6 − 1/6 =
  31. 31.7/11 − 1/2 =
  32. 32.11/12 + 1/2 =
  33. 33.2/4 + 1/2 =
  34. 34.1/4 + 1/4 =
  35. 35.8/11 − 1/9 =
  36. 36.9/11 − 1/2 =
  37. 37.4/11 + 2/7 =
  38. 38.7/8 − 4/6 =
  39. 39.2/9 + 1/9 =
  40. 40.2/8 + 1/2 =

Answer key

  1. 35/33
  2. 11/40
  3. 1
  4. 9/10
  5. 1/12
  6. 1/22
  7. 17/33
  8. 17/63
  9. 67/90
  10. 3/4
  11. 1/15
  12. 1/14
  13. 5/18
  14. 4/3
  15. 2/7
  16. 20/63
  17. 3/4
  18. 36/55
  19. 11/12
  20. 2/5
  21. 21/20
  22. 1/10
  23. 1/15
  24. 14/15
  25. 17/18
  26. 7/5
  27. 4/3
  28. 1/18
  29. 72/77
  30. 2/3
  31. 3/22
  32. 17/12
  33. 1
  34. 1/2
  35. 61/99
  36. 7/22
  37. 50/77
  38. 5/24
  39. 1/3
  40. 3/4

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