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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 165 · 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. 1.2/7 + 1/3 =
  2. 2.4/5 + 2/3 =
  3. 3.1/4 + 2/4 =
  4. 4.3/4 − 1/10 =
  5. 5.3/4 − 1/2 =
  6. 6.2/4 + 4/6 =
  7. 7.7/10 − 3/7 =
  8. 8.1/7 + 4/12 =
  9. 9.2/3 + 2/9 =
  10. 10.5/7 + 1/3 =
  11. 11.1/3 + 6/10 =
  12. 12.1/3 + 2/3 =
  13. 13.3/9 + 2/11 =
  14. 14.4/6 + 2/5 =
  15. 15.4/7 + 2/3 =
  16. 16.1/12 + 2/4 =
  17. 17.1/7 + 1/10 =
  18. 18.9/10 + 1/3 =
  19. 19.1/4 + 7/11 =
  20. 20.1/4 − 1/8 =
  21. 21.4/6 + 1/10 =
  22. 22.2/9 + 7/8 =
  23. 23.2/7 + 2/4 =
  24. 24.7/10 − 2/9 =
  25. 25.1/2 − 3/12 =
  26. 26.2/10 + 2/8 =
  27. 27.3/9 + 1/3 =
  28. 28.5/6 + 3/8 =
  29. 29.11/12 − 3/9 =
  30. 30.2/3 − 6/10 =
  31. 31.4/8 + 5/10 =
  32. 32.5/7 − 1/4 =
  33. 33.7/9 + 2/3 =
  34. 34.7/11 + 2/7 =
  35. 35.3/4 − 1/2 =
  36. 36.1/2 + 9/12 =
  37. 37.7/11 + 7/11 =
  38. 38.2/3 − 3/6 =
  39. 39.8/10 + 8/10 =
  40. 40.1/3 + 7/11 =

Answer key

  1. 13/21
  2. 22/15
  3. 3/4
  4. 13/20
  5. 1/4
  6. 7/6
  7. 19/70
  8. 10/21
  9. 8/9
  10. 22/21
  11. 14/15
  12. 1
  13. 17/33
  14. 16/15
  15. 26/21
  16. 7/12
  17. 17/70
  18. 37/30
  19. 39/44
  20. 1/8
  21. 23/30
  22. 79/72
  23. 11/14
  24. 43/90
  25. 1/4
  26. 9/20
  27. 2/3
  28. 29/24
  29. 7/12
  30. 1/15
  31. 1
  32. 13/28
  33. 13/9
  34. 71/77
  35. 1/4
  36. 5/4
  37. 14/11
  38. 1/6
  39. 8/5
  40. 32/33

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