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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 84 · 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. 1.2/5 + 2/8 =
  2. 2.2/4 + 3/7 =
  3. 3.1/2 + 4/5 =
  4. 4.1/2 + 1/12 =
  5. 5.3/9 − 1/4 =
  6. 6.1/2 + 4/11 =
  7. 7.1/5 + 3/6 =
  8. 8.6/9 − 3/9 =
  9. 9.2/6 + 1/2 =
  10. 10.9/10 − 2/3 =
  11. 11.1/2 + 2/8 =
  12. 12.3/9 − 2/10 =
  13. 13.9/12 + 2/6 =
  14. 14.4/7 − 3/10 =
  15. 15.8/11 + 4/6 =
  16. 16.5/6 + 1/4 =
  17. 17.3/6 + 3/9 =
  18. 18.4/7 − 2/8 =
  19. 19.6/10 − 1/2 =
  20. 20.2/3 − 2/4 =
  21. 21.5/11 − 1/10 =
  22. 22.6/7 − 2/11 =
  23. 23.2/4 + 4/8 =
  24. 24.5/7 − 2/3 =
  25. 25.1/2 + 3/5 =
  26. 26.7/10 − 1/4 =
  27. 27.7/9 + 1/10 =
  28. 28.2/3 − 4/11 =
  29. 29.3/7 + 1/11 =
  30. 30.1/3 + 1/2 =
  31. 31.1/5 + 6/8 =
  32. 32.1/5 − 1/8 =
  33. 33.2/3 + 7/8 =
  34. 34.1/4 + 3/6 =
  35. 35.9/11 − 6/10 =
  36. 36.1/2 + 1/9 =
  37. 37.8/9 − 1/11 =
  38. 38.7/8 + 8/9 =
  39. 39.5/8 − 3/8 =
  40. 40.4/5 − 1/10 =

Answer key

  1. 13/20
  2. 13/14
  3. 13/10
  4. 7/12
  5. 1/12
  6. 19/22
  7. 7/10
  8. 1/3
  9. 5/6
  10. 7/30
  11. 3/4
  12. 2/15
  13. 13/12
  14. 19/70
  15. 46/33
  16. 13/12
  17. 5/6
  18. 9/28
  19. 1/10
  20. 1/6
  21. 39/110
  22. 52/77
  23. 1
  24. 1/21
  25. 11/10
  26. 9/20
  27. 79/90
  28. 10/33
  29. 40/77
  30. 5/6
  31. 19/20
  32. 3/40
  33. 37/24
  34. 3/4
  35. 12/55
  36. 11/18
  37. 79/99
  38. 127/72
  39. 1/4
  40. 7/10

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