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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 608 · 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. 1.7/10 + 6/11 =
  2. 2.7/11 − 5/11 =
  3. 3.7/12 + 2/12 =
  4. 4.6/8 + 1/5 =
  5. 5.4/10 − 1/3 =
  6. 6.3/6 + 5/7 =
  7. 7.10/12 + 1/2 =
  8. 8.5/7 + 8/11 =
  9. 9.2/4 + 3/4 =
  10. 10.1/2 − 3/11 =
  11. 11.1/3 + 3/9 =
  12. 12.2/4 + 4/11 =
  13. 13.6/7 + 1/5 =
  14. 14.2/12 + 7/9 =
  15. 15.2/4 + 10/11 =
  16. 16.2/4 + 1/3 =
  17. 17.6/12 − 2/5 =
  18. 18.2/6 − 1/11 =
  19. 19.7/12 + 2/9 =
  20. 20.5/6 + 8/11 =
  21. 21.7/9 − 2/3 =
  22. 22.3/8 + 3/11 =
  23. 23.1/2 + 4/5 =
  24. 24.5/10 + 4/8 =
  25. 25.2/8 + 2/9 =
  26. 26.1/11 + 2/11 =
  27. 27.1/2 + 6/7 =
  28. 28.2/5 − 3/8 =
  29. 29.4/8 + 1/2 =
  30. 30.7/9 − 2/4 =
  31. 31.1/10 + 3/4 =
  32. 32.9/10 + 2/3 =
  33. 33.7/8 + 4/6 =
  34. 34.5/6 + 2/12 =
  35. 35.5/10 + 2/4 =
  36. 36.1/2 + 1/2 =
  37. 37.1/2 + 1/2 =
  38. 38.3/5 + 2/3 =
  39. 39.10/11 − 5/7 =
  40. 40.6/9 + 2/8 =

Answer key

  1. 137/110
  2. 2/11
  3. 3/4
  4. 19/20
  5. 1/15
  6. 17/14
  7. 4/3
  8. 111/77
  9. 5/4
  10. 5/22
  11. 2/3
  12. 19/22
  13. 37/35
  14. 17/18
  15. 31/22
  16. 5/6
  17. 1/10
  18. 8/33
  19. 29/36
  20. 103/66
  21. 1/9
  22. 57/88
  23. 13/10
  24. 1
  25. 17/36
  26. 3/11
  27. 19/14
  28. 1/40
  29. 1
  30. 5/18
  31. 17/20
  32. 47/30
  33. 37/24
  34. 1
  35. 1
  36. 1
  37. 1
  38. 19/15
  39. 15/77
  40. 11/12

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