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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 611 · 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. 1.2/4 + 1/2 =
  2. 2.1/3 + 3/5 =
  3. 3.1/3 − 3/10 =
  4. 4.8/10 − 3/8 =
  5. 5.6/12 + 3/8 =
  6. 6.1/4 − 1/6 =
  7. 7.1/3 + 3/10 =
  8. 8.1/5 + 3/5 =
  9. 9.4/9 + 6/9 =
  10. 10.3/6 + 1/3 =
  11. 11.1/2 + 2/3 =
  12. 12.6/7 − 8/11 =
  13. 13.3/4 − 3/6 =
  14. 14.8/11 + 8/10 =
  15. 15.1/3 + 7/11 =
  16. 16.1/4 + 6/7 =
  17. 17.1/3 + 9/12 =
  18. 18.1/7 + 1/3 =
  19. 19.1/2 − 2/5 =
  20. 20.1/2 + 1/2 =
  21. 21.1/4 + 2/6 =
  22. 22.1/3 − 1/8 =
  23. 23.1/3 + 6/9 =
  24. 24.1/2 − 3/8 =
  25. 25.4/11 + 1/10 =
  26. 26.1/2 + 1/2 =
  27. 27.5/6 − 1/4 =
  28. 28.4/7 − 1/5 =
  29. 29.3/6 − 1/10 =
  30. 30.3/10 + 3/7 =
  31. 31.2/12 − 1/10 =
  32. 32.1/2 − 1/11 =
  33. 33.3/7 − 1/3 =
  34. 34.3/5 + 9/12 =
  35. 35.1/3 − 1/4 =
  36. 36.3/11 − 2/10 =
  37. 37.5/11 − 1/4 =
  38. 38.8/9 − 3/9 =
  39. 39.3/5 + 5/9 =
  40. 40.3/5 − 1/5 =

Answer key

  1. 1
  2. 14/15
  3. 1/30
  4. 17/40
  5. 7/8
  6. 1/12
  7. 19/30
  8. 4/5
  9. 10/9
  10. 5/6
  11. 7/6
  12. 10/77
  13. 1/4
  14. 84/55
  15. 32/33
  16. 31/28
  17. 13/12
  18. 10/21
  19. 1/10
  20. 1
  21. 7/12
  22. 5/24
  23. 1
  24. 1/8
  25. 51/110
  26. 1
  27. 7/12
  28. 13/35
  29. 2/5
  30. 51/70
  31. 1/15
  32. 9/22
  33. 2/21
  34. 27/20
  35. 1/12
  36. 4/55
  37. 9/44
  38. 5/9
  39. 52/45
  40. 2/5

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