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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 494 · 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. 1.5/8 − 2/9 =
  2. 2.4/9 − 1/3 =
  3. 3.8/9 − 4/7 =
  4. 4.2/12 + 1/4 =
  5. 5.2/3 + 2/6 =
  6. 6.3/9 + 3/9 =
  7. 7.3/5 + 1/8 =
  8. 8.2/6 + 2/11 =
  9. 9.1/8 + 3/6 =
  10. 10.1/2 − 1/4 =
  11. 11.1/5 + 6/8 =
  12. 12.1/4 + 2/8 =
  13. 13.3/4 + 3/5 =
  14. 14.1/3 + 1/5 =
  15. 15.1/2 − 1/4 =
  16. 16.9/12 + 5/8 =
  17. 17.6/11 + 4/7 =
  18. 18.5/9 − 2/9 =
  19. 19.1/2 + 4/10 =
  20. 20.7/8 − 4/7 =
  21. 21.1/5 + 2/6 =
  22. 22.1/5 + 8/12 =
  23. 23.3/4 + 6/12 =
  24. 24.2/6 + 2/6 =
  25. 25.2/7 + 3/4 =
  26. 26.6/7 + 5/6 =
  27. 27.1/8 + 1/8 =
  28. 28.6/10 − 2/5 =
  29. 29.9/10 + 2/4 =
  30. 30.6/9 − 1/12 =
  31. 31.2/5 + 3/4 =
  32. 32.2/4 + 1/2 =
  33. 33.1/3 + 1/3 =
  34. 34.1/2 + 1/2 =
  35. 35.7/11 + 4/6 =
  36. 36.2/5 + 3/7 =
  37. 37.6/7 − 3/8 =
  38. 38.1/8 + 3/8 =
  39. 39.3/7 − 1/3 =
  40. 40.3/8 + 1/3 =

Answer key

  1. 29/72
  2. 1/9
  3. 20/63
  4. 5/12
  5. 1
  6. 2/3
  7. 29/40
  8. 17/33
  9. 5/8
  10. 1/4
  11. 19/20
  12. 1/2
  13. 27/20
  14. 8/15
  15. 1/4
  16. 11/8
  17. 86/77
  18. 1/3
  19. 9/10
  20. 17/56
  21. 8/15
  22. 13/15
  23. 5/4
  24. 2/3
  25. 29/28
  26. 71/42
  27. 1/4
  28. 1/5
  29. 7/5
  30. 7/12
  31. 23/20
  32. 1
  33. 2/3
  34. 1
  35. 43/33
  36. 29/35
  37. 27/56
  38. 1/2
  39. 2/21
  40. 17/24

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