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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 911 · 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. 1.1/2 + 5/8 =
  2. 2.3/4 + 2/8 =
  3. 3.1/3 + 1/4 =
  4. 4.2/7 − 1/7 =
  5. 5.1/2 − 1/3 =
  6. 6.4/7 + 4/8 =
  7. 7.2/5 + 3/10 =
  8. 8.2/12 + 3/9 =
  9. 9.1/2 + 2/4 =
  10. 10.1/7 + 5/11 =
  11. 11.6/8 + 1/5 =
  12. 12.2/4 + 1/2 =
  13. 13.4/9 − 1/3 =
  14. 14.6/11 − 1/6 =
  15. 15.4/7 + 5/9 =
  16. 16.4/6 + 2/3 =
  17. 17.5/6 − 1/2 =
  18. 18.4/6 − 3/11 =
  19. 19.2/4 + 4/8 =
  20. 20.2/4 − 1/4 =
  21. 21.4/11 + 6/12 =
  22. 22.8/10 − 2/3 =
  23. 23.3/4 + 2/4 =
  24. 24.1/3 + 2/6 =
  25. 25.1/2 + 3/12 =
  26. 26.6/11 − 1/2 =
  27. 27.9/10 + 1/3 =
  28. 28.4/8 + 1/2 =
  29. 29.6/8 + 4/7 =
  30. 30.3/4 + 3/8 =
  31. 31.2/3 + 1/9 =
  32. 32.6/7 − 1/7 =
  33. 33.3/4 + 2/9 =
  34. 34.6/8 + 3/4 =
  35. 35.5/7 + 6/9 =
  36. 36.1/3 + 10/11 =
  37. 37.9/11 − 1/3 =
  38. 38.8/10 − 1/2 =
  39. 39.3/4 + 6/12 =
  40. 40.1/2 + 3/7 =

Answer key

  1. 9/8
  2. 1
  3. 7/12
  4. 1/7
  5. 1/6
  6. 15/14
  7. 7/10
  8. 1/2
  9. 1
  10. 46/77
  11. 19/20
  12. 1
  13. 1/9
  14. 25/66
  15. 71/63
  16. 4/3
  17. 1/3
  18. 13/33
  19. 1
  20. 1/4
  21. 19/22
  22. 2/15
  23. 5/4
  24. 2/3
  25. 3/4
  26. 1/22
  27. 37/30
  28. 1
  29. 37/28
  30. 9/8
  31. 7/9
  32. 5/7
  33. 35/36
  34. 3/2
  35. 29/21
  36. 41/33
  37. 16/33
  38. 3/10
  39. 5/4
  40. 13/14

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