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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 148 · 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. 1.6/7 − 2/10 =
  2. 2.6/7 − 1/3 =
  3. 3.5/7 + 6/9 =
  4. 4.8/10 − 2/11 =
  5. 5.1/8 + 2/5 =
  6. 6.5/7 + 1/5 =
  7. 7.3/4 + 5/10 =
  8. 8.2/6 + 7/10 =
  9. 9.4/12 + 4/12 =
  10. 10.3/8 − 1/3 =
  11. 11.2/5 + 1/2 =
  12. 12.7/8 − 2/9 =
  13. 13.4/8 + 5/9 =
  14. 14.11/12 + 1/3 =
  15. 15.3/4 − 1/4 =
  16. 16.3/10 + 7/11 =
  17. 17.1/10 + 3/10 =
  18. 18.6/9 + 9/12 =
  19. 19.3/11 + 1/4 =
  20. 20.2/3 + 6/12 =
  21. 21.1/11 + 2/8 =
  22. 22.3/4 + 1/5 =
  23. 23.4/8 + 1/2 =
  24. 24.1/12 + 3/7 =
  25. 25.2/4 + 1/2 =
  26. 26.4/9 − 3/12 =
  27. 27.7/11 − 4/11 =
  28. 28.1/2 + 4/10 =
  29. 29.3/4 + 1/4 =
  30. 30.2/12 + 1/8 =
  31. 31.3/5 − 4/10 =
  32. 32.7/8 − 1/12 =
  33. 33.5/10 + 2/5 =
  34. 34.3/5 + 1/2 =
  35. 35.1/6 + 9/10 =
  36. 36.4/11 + 2/4 =
  37. 37.6/8 + 7/11 =
  38. 38.2/12 + 8/12 =
  39. 39.1/2 + 7/11 =
  40. 40.1/2 − 1/5 =

Answer key

  1. 23/35
  2. 11/21
  3. 29/21
  4. 34/55
  5. 21/40
  6. 32/35
  7. 5/4
  8. 31/30
  9. 2/3
  10. 1/24
  11. 9/10
  12. 47/72
  13. 19/18
  14. 5/4
  15. 1/2
  16. 103/110
  17. 2/5
  18. 17/12
  19. 23/44
  20. 7/6
  21. 15/44
  22. 19/20
  23. 1
  24. 43/84
  25. 1
  26. 7/36
  27. 3/11
  28. 9/10
  29. 1
  30. 7/24
  31. 1/5
  32. 19/24
  33. 9/10
  34. 11/10
  35. 16/15
  36. 19/22
  37. 61/44
  38. 5/6
  39. 25/22
  40. 3/10

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