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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 407 · 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 − 2/8 =
  2. 2.1/3 + 1/3 =
  3. 3.4/5 − 4/6 =
  4. 4.2/3 + 2/3 =
  5. 5.1/3 + 1/3 =
  6. 6.5/10 + 2/5 =
  7. 7.7/8 − 4/6 =
  8. 8.2/12 + 3/9 =
  9. 9.7/9 + 4/5 =
  10. 10.2/4 − 1/3 =
  11. 11.2/8 + 2/8 =
  12. 12.2/6 + 1/4 =
  13. 13.4/6 − 2/4 =
  14. 14.3/5 + 2/3 =
  15. 15.4/12 − 2/12 =
  16. 16.1/2 + 3/5 =
  17. 17.6/11 − 1/6 =
  18. 18.1/6 + 1/12 =
  19. 19.4/6 + 6/7 =
  20. 20.2/3 + 8/12 =
  21. 21.1/3 + 4/9 =
  22. 22.7/10 + 7/12 =
  23. 23.2/3 + 8/11 =
  24. 24.7/9 + 2/4 =
  25. 25.3/4 + 8/9 =
  26. 26.1/3 − 1/5 =
  27. 27.2/4 − 1/4 =
  28. 28.1/4 + 1/8 =
  29. 29.2/3 − 1/2 =
  30. 30.1/2 − 3/11 =
  31. 31.3/4 + 1/3 =
  32. 32.5/8 + 1/4 =
  33. 33.3/5 + 1/8 =
  34. 34.2/5 − 1/6 =
  35. 35.1/5 + 4/8 =
  36. 36.6/12 + 1/9 =
  37. 37.1/7 + 1/4 =
  38. 38.8/9 + 1/2 =
  39. 39.8/9 + 3/7 =
  40. 40.6/7 − 3/10 =

Answer key

  1. 1/4
  2. 2/3
  3. 2/15
  4. 4/3
  5. 2/3
  6. 9/10
  7. 5/24
  8. 1/2
  9. 71/45
  10. 1/6
  11. 1/2
  12. 7/12
  13. 1/6
  14. 19/15
  15. 1/6
  16. 11/10
  17. 25/66
  18. 1/4
  19. 32/21
  20. 4/3
  21. 7/9
  22. 77/60
  23. 46/33
  24. 23/18
  25. 59/36
  26. 2/15
  27. 1/4
  28. 3/8
  29. 1/6
  30. 5/22
  31. 13/12
  32. 7/8
  33. 29/40
  34. 7/30
  35. 7/10
  36. 11/18
  37. 11/28
  38. 25/18
  39. 83/63
  40. 39/70

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