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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 306 · 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. 1.3/6 + 1/2 =
  2. 2.1/4 + 10/11 =
  3. 3.3/10 + 5/7 =
  4. 4.5/10 + 2/3 =
  5. 5.1/6 + 5/9 =
  6. 6.1/7 + 2/4 =
  7. 7.1/2 + 10/11 =
  8. 8.1/6 + 2/9 =
  9. 9.1/2 + 3/6 =
  10. 10.1/3 − 1/6 =
  11. 11.2/9 + 1/2 =
  12. 12.1/4 + 9/11 =
  13. 13.1/12 + 3/10 =
  14. 14.9/12 + 4/10 =
  15. 15.3/8 + 3/8 =
  16. 16.4/10 + 1/2 =
  17. 17.2/5 − 2/7 =
  18. 18.4/11 + 2/7 =
  19. 19.9/11 − 4/7 =
  20. 20.11/12 − 1/4 =
  21. 21.5/11 + 8/10 =
  22. 22.6/8 + 1/5 =
  23. 23.1/3 + 6/7 =
  24. 24.2/3 − 5/10 =
  25. 25.1/12 + 2/5 =
  26. 26.3/4 − 2/3 =
  27. 27.5/7 + 1/9 =
  28. 28.5/12 − 2/6 =
  29. 29.1/2 − 1/3 =
  30. 30.3/4 + 1/4 =
  31. 31.3/9 + 2/3 =
  32. 32.1/5 + 5/11 =
  33. 33.1/2 + 6/12 =
  34. 34.1/3 + 1/3 =
  35. 35.2/8 + 2/5 =
  36. 36.1/9 + 1/9 =
  37. 37.3/12 + 1/2 =
  38. 38.1/4 + 3/8 =
  39. 39.2/3 − 1/3 =
  40. 40.8/12 + 1/2 =

Answer key

  1. 1
  2. 51/44
  3. 71/70
  4. 7/6
  5. 13/18
  6. 9/14
  7. 31/22
  8. 7/18
  9. 1
  10. 1/6
  11. 13/18
  12. 47/44
  13. 23/60
  14. 23/20
  15. 3/4
  16. 9/10
  17. 4/35
  18. 50/77
  19. 19/77
  20. 2/3
  21. 69/55
  22. 19/20
  23. 25/21
  24. 1/6
  25. 29/60
  26. 1/12
  27. 52/63
  28. 1/12
  29. 1/6
  30. 1
  31. 1
  32. 36/55
  33. 1
  34. 2/3
  35. 13/20
  36. 2/9
  37. 3/4
  38. 5/8
  39. 1/3
  40. 7/6

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