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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 843 · 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. 1.7/11 + 1/10 =
  2. 2.1/2 + 6/8 =
  3. 3.8/11 + 1/3 =
  4. 4.1/8 + 1/7 =
  5. 5.2/3 + 3/6 =
  6. 6.8/9 − 6/7 =
  7. 7.1/7 + 4/6 =
  8. 8.4/8 + 2/5 =
  9. 9.2/5 + 4/8 =
  10. 10.1/2 − 1/8 =
  11. 11.4/7 + 2/11 =
  12. 12.4/6 + 7/11 =
  13. 13.3/4 − 4/10 =
  14. 14.6/11 + 1/2 =
  15. 15.2/10 + 1/3 =
  16. 16.2/10 + 2/10 =
  17. 17.7/9 − 2/7 =
  18. 18.2/11 − 1/6 =
  19. 19.2/4 + 1/11 =
  20. 20.1/10 + 6/9 =
  21. 21.5/10 − 1/3 =
  22. 22.1/7 + 7/10 =
  23. 23.8/9 + 4/8 =
  24. 24.1/3 + 5/12 =
  25. 25.4/9 − 1/11 =
  26. 26.1/6 + 5/10 =
  27. 27.8/11 + 3/7 =
  28. 28.3/6 + 1/4 =
  29. 29.3/7 − 3/11 =
  30. 30.3/7 + 3/8 =
  31. 31.6/8 + 6/7 =
  32. 32.1/2 + 1/3 =
  33. 33.5/6 − 1/3 =
  34. 34.1/4 + 1/2 =
  35. 35.4/5 + 4/6 =
  36. 36.1/4 + 5/9 =
  37. 37.2/3 + 1/2 =
  38. 38.2/3 + 5/9 =
  39. 39.2/3 − 1/2 =
  40. 40.2/7 − 1/8 =

Answer key

  1. 81/110
  2. 5/4
  3. 35/33
  4. 15/56
  5. 7/6
  6. 2/63
  7. 17/21
  8. 9/10
  9. 9/10
  10. 3/8
  11. 58/77
  12. 43/33
  13. 7/20
  14. 23/22
  15. 8/15
  16. 2/5
  17. 31/63
  18. 1/66
  19. 13/22
  20. 23/30
  21. 1/6
  22. 59/70
  23. 25/18
  24. 3/4
  25. 35/99
  26. 2/3
  27. 89/77
  28. 3/4
  29. 12/77
  30. 45/56
  31. 45/28
  32. 5/6
  33. 1/2
  34. 3/4
  35. 22/15
  36. 29/36
  37. 7/6
  38. 11/9
  39. 1/6
  40. 9/56

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