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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 674 · 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. 1.1/4 − 1/5 =
  2. 2.1/2 + 2/10 =
  3. 3.3/7 + 4/11 =
  4. 4.1/4 + 4/6 =
  5. 5.1/3 + 1/3 =
  6. 6.3/10 + 1/2 =
  7. 7.4/7 − 1/2 =
  8. 8.8/10 − 1/8 =
  9. 9.2/5 + 1/4 =
  10. 10.4/10 + 2/7 =
  11. 11.1/7 + 1/6 =
  12. 12.1/3 − 3/12 =
  13. 13.4/5 − 3/10 =
  14. 14.4/6 − 1/3 =
  15. 15.2/5 − 1/8 =
  16. 16.1/2 + 1/2 =
  17. 17.5/11 + 9/11 =
  18. 18.1/11 + 6/11 =
  19. 19.1/9 + 2/5 =
  20. 20.8/12 − 1/8 =
  21. 21.2/5 + 10/11 =
  22. 22.3/8 + 1/7 =
  23. 23.8/10 − 1/2 =
  24. 24.2/4 + 1/2 =
  25. 25.1/2 + 2/7 =
  26. 26.1/2 + 1/2 =
  27. 27.7/12 − 2/6 =
  28. 28.1/8 + 10/11 =
  29. 29.1/2 + 2/6 =
  30. 30.3/6 − 1/4 =
  31. 31.2/4 − 1/10 =
  32. 32.1/2 − 2/7 =
  33. 33.1/9 − 1/10 =
  34. 34.7/12 + 5/6 =
  35. 35.1/2 + 5/10 =
  36. 36.1/3 − 2/12 =
  37. 37.4/6 + 1/9 =
  38. 38.1/2 − 3/7 =
  39. 39.1/9 + 1/4 =
  40. 40.8/12 + 10/11 =

Answer key

  1. 1/20
  2. 7/10
  3. 61/77
  4. 11/12
  5. 2/3
  6. 4/5
  7. 1/14
  8. 27/40
  9. 13/20
  10. 24/35
  11. 13/42
  12. 1/12
  13. 1/2
  14. 1/3
  15. 11/40
  16. 1
  17. 14/11
  18. 7/11
  19. 23/45
  20. 13/24
  21. 72/55
  22. 29/56
  23. 3/10
  24. 1
  25. 11/14
  26. 1
  27. 1/4
  28. 91/88
  29. 5/6
  30. 1/4
  31. 2/5
  32. 3/14
  33. 1/90
  34. 17/12
  35. 1
  36. 1/6
  37. 7/9
  38. 1/14
  39. 13/36
  40. 52/33

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