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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 128 · 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. 1.9/11 + 6/7 =
  2. 2.1/2 + 9/11 =
  3. 3.1/3 + 1/7 =
  4. 4.1/5 + 1/2 =
  5. 5.6/7 + 2/6 =
  6. 6.2/4 + 1/5 =
  7. 7.9/10 + 2/5 =
  8. 8.1/2 + 7/12 =
  9. 9.1/12 + 2/4 =
  10. 10.6/11 + 8/10 =
  11. 11.5/7 + 1/3 =
  12. 12.11/12 + 2/8 =
  13. 13.1/2 + 9/12 =
  14. 14.2/9 + 3/4 =
  15. 15.2/12 + 2/3 =
  16. 16.2/4 + 3/6 =
  17. 17.5/11 − 1/5 =
  18. 18.3/4 − 4/10 =
  19. 19.2/3 − 1/2 =
  20. 20.1/3 + 4/12 =
  21. 21.3/4 − 3/10 =
  22. 22.2/4 + 8/11 =
  23. 23.5/8 − 1/2 =
  24. 24.4/9 − 2/7 =
  25. 25.3/4 + 1/4 =
  26. 26.4/5 − 1/8 =
  27. 27.1/10 + 6/9 =
  28. 28.1/2 + 7/9 =
  29. 29.3/8 + 8/12 =
  30. 30.5/11 + 3/10 =
  31. 31.3/5 + 4/7 =
  32. 32.2/10 + 3/6 =
  33. 33.11/12 − 1/8 =
  34. 34.1/2 + 7/10 =
  35. 35.3/7 − 1/3 =
  36. 36.4/5 + 1/6 =
  37. 37.2/4 + 7/9 =
  38. 38.2/4 − 2/6 =
  39. 39.1/2 + 9/12 =
  40. 40.3/12 + 1/2 =

Answer key

  1. 129/77
  2. 29/22
  3. 10/21
  4. 7/10
  5. 25/21
  6. 7/10
  7. 13/10
  8. 13/12
  9. 7/12
  10. 74/55
  11. 22/21
  12. 7/6
  13. 5/4
  14. 35/36
  15. 5/6
  16. 1
  17. 14/55
  18. 7/20
  19. 1/6
  20. 2/3
  21. 9/20
  22. 27/22
  23. 1/8
  24. 10/63
  25. 1
  26. 27/40
  27. 23/30
  28. 23/18
  29. 25/24
  30. 83/110
  31. 41/35
  32. 7/10
  33. 19/24
  34. 6/5
  35. 2/21
  36. 29/30
  37. 23/18
  38. 1/6
  39. 5/4
  40. 3/4

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