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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 56 · 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. 1.1/2 − 1/10 =
  2. 2.1/6 + 1/7 =
  3. 3.1/4 + 1/4 =
  4. 4.6/11 − 1/3 =
  5. 5.8/9 + 2/4 =
  6. 6.8/12 + 6/12 =
  7. 7.1/2 + 8/11 =
  8. 8.1/3 − 1/5 =
  9. 9.4/10 + 5/7 =
  10. 10.4/11 − 3/10 =
  11. 11.3/7 + 4/12 =
  12. 12.7/11 − 4/11 =
  13. 13.1/2 + 2/8 =
  14. 14.1/3 + 2/3 =
  15. 15.2/10 − 2/11 =
  16. 16.2/7 + 2/3 =
  17. 17.3/4 − 1/3 =
  18. 18.1/7 + 5/9 =
  19. 19.8/12 + 2/12 =
  20. 20.3/5 − 2/6 =
  21. 21.8/10 + 3/8 =
  22. 22.5/9 − 1/2 =
  23. 23.5/7 + 5/6 =
  24. 24.5/7 − 1/2 =
  25. 25.3/12 + 1/12 =
  26. 26.5/9 + 1/2 =
  27. 27.2/4 + 2/11 =
  28. 28.4/9 + 3/5 =
  29. 29.1/3 − 2/7 =
  30. 30.1/2 − 5/11 =
  31. 31.1/4 + 1/2 =
  32. 32.6/10 + 4/9 =
  33. 33.6/11 + 2/7 =
  34. 34.2/4 − 4/12 =
  35. 35.2/11 + 3/10 =
  36. 36.6/10 + 3/12 =
  37. 37.4/6 + 6/12 =
  38. 38.1/4 + 6/7 =
  39. 39.10/12 − 2/3 =
  40. 40.3/4 + 6/9 =

Answer key

  1. 2/5
  2. 13/42
  3. 1/2
  4. 7/33
  5. 25/18
  6. 7/6
  7. 27/22
  8. 2/15
  9. 39/35
  10. 7/110
  11. 16/21
  12. 3/11
  13. 3/4
  14. 1
  15. 1/55
  16. 20/21
  17. 5/12
  18. 44/63
  19. 5/6
  20. 4/15
  21. 47/40
  22. 1/18
  23. 65/42
  24. 3/14
  25. 1/3
  26. 19/18
  27. 15/22
  28. 47/45
  29. 1/21
  30. 1/22
  31. 3/4
  32. 47/45
  33. 64/77
  34. 1/6
  35. 53/110
  36. 17/20
  37. 7/6
  38. 31/28
  39. 1/6
  40. 17/12

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