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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 656 · 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. 1.3/7 + 7/10 =
  2. 2.6/10 + 3/4 =
  3. 3.2/7 + 6/10 =
  4. 4.2/4 − 2/10 =
  5. 5.8/9 − 2/7 =
  6. 6.2/8 + 3/8 =
  7. 7.1/5 + 1/4 =
  8. 8.2/6 + 1/2 =
  9. 9.1/2 − 1/7 =
  10. 10.4/8 + 1/2 =
  11. 11.8/10 + 5/10 =
  12. 12.6/11 + 4/6 =
  13. 13.1/2 + 2/4 =
  14. 14.4/7 + 1/3 =
  15. 15.1/2 + 1/9 =
  16. 16.1/3 − 2/9 =
  17. 17.11/12 − 1/2 =
  18. 18.5/6 − 3/4 =
  19. 19.1/5 + 7/9 =
  20. 20.3/11 + 1/3 =
  21. 21.11/12 − 5/8 =
  22. 22.9/10 − 1/7 =
  23. 23.7/8 + 1/3 =
  24. 24.2/3 + 1/2 =
  25. 25.2/11 + 2/5 =
  26. 26.2/7 + 1/5 =
  27. 27.9/10 − 5/12 =
  28. 28.1/5 + 7/12 =
  29. 29.5/8 − 1/2 =
  30. 30.2/6 + 1/3 =
  31. 31.4/5 + 1/10 =
  32. 32.1/7 + 5/8 =
  33. 33.2/11 + 1/2 =
  34. 34.1/3 + 1/7 =
  35. 35.10/12 + 3/10 =
  36. 36.3/5 + 1/3 =
  37. 37.6/12 + 4/12 =
  38. 38.1/5 + 6/10 =
  39. 39.5/8 − 3/5 =
  40. 40.1/2 + 1/2 =

Answer key

  1. 79/70
  2. 27/20
  3. 31/35
  4. 3/10
  5. 38/63
  6. 5/8
  7. 9/20
  8. 5/6
  9. 5/14
  10. 1
  11. 13/10
  12. 40/33
  13. 1
  14. 19/21
  15. 11/18
  16. 1/9
  17. 5/12
  18. 1/12
  19. 44/45
  20. 20/33
  21. 7/24
  22. 53/70
  23. 29/24
  24. 7/6
  25. 32/55
  26. 17/35
  27. 29/60
  28. 47/60
  29. 1/8
  30. 2/3
  31. 9/10
  32. 43/56
  33. 15/22
  34. 10/21
  35. 17/15
  36. 14/15
  37. 5/6
  38. 4/5
  39. 1/40
  40. 1

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