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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 790 · 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. 1.1/10 + 2/4 =
  2. 2.1/5 + 6/7 =
  3. 3.4/7 + 1/7 =
  4. 4.10/12 + 3/4 =
  5. 5.1/4 + 3/5 =
  6. 6.1/10 + 5/7 =
  7. 7.2/11 + 3/6 =
  8. 8.3/5 + 8/9 =
  9. 9.1/2 − 2/6 =
  10. 10.1/2 + 6/10 =
  11. 11.1/2 + 1/2 =
  12. 12.2/3 − 4/12 =
  13. 13.7/10 + 8/11 =
  14. 14.1/2 + 3/5 =
  15. 15.2/6 + 3/5 =
  16. 16.1/2 − 1/3 =
  17. 17.7/12 − 5/10 =
  18. 18.3/7 + 4/5 =
  19. 19.9/12 − 4/8 =
  20. 20.5/6 − 6/8 =
  21. 21.5/7 − 6/11 =
  22. 22.1/5 + 6/7 =
  23. 23.5/10 + 1/2 =
  24. 24.3/6 + 2/9 =
  25. 25.6/7 − 6/10 =
  26. 26.8/9 − 4/6 =
  27. 27.5/7 − 3/11 =
  28. 28.5/9 − 3/8 =
  29. 29.1/2 + 1/8 =
  30. 30.5/12 + 1/3 =
  31. 31.2/6 + 1/8 =
  32. 32.3/4 + 1/3 =
  33. 33.1/2 − 1/3 =
  34. 34.1/3 + 2/9 =
  35. 35.4/5 + 4/5 =
  36. 36.1/3 + 1/11 =
  37. 37.5/8 − 3/11 =
  38. 38.8/10 + 5/10 =
  39. 39.2/3 + 2/3 =
  40. 40.1/11 + 5/8 =

Answer key

  1. 3/5
  2. 37/35
  3. 5/7
  4. 19/12
  5. 17/20
  6. 57/70
  7. 15/22
  8. 67/45
  9. 1/6
  10. 11/10
  11. 1
  12. 1/3
  13. 157/110
  14. 11/10
  15. 14/15
  16. 1/6
  17. 1/12
  18. 43/35
  19. 1/4
  20. 1/12
  21. 13/77
  22. 37/35
  23. 1
  24. 13/18
  25. 9/35
  26. 2/9
  27. 34/77
  28. 13/72
  29. 5/8
  30. 3/4
  31. 11/24
  32. 13/12
  33. 1/6
  34. 5/9
  35. 8/5
  36. 14/33
  37. 31/88
  38. 13/10
  39. 4/3
  40. 63/88

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