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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 830 · 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. 1.1/7 + 2/9 =
  2. 2.2/3 + 3/9 =
  3. 3.3/8 + 3/4 =
  4. 4.5/10 + 2/3 =
  5. 5.2/9 + 3/11 =
  6. 6.1/6 + 1/3 =
  7. 7.1/2 − 2/5 =
  8. 8.2/3 − 2/9 =
  9. 9.5/6 + 3/10 =
  10. 10.3/4 − 2/5 =
  11. 11.1/2 + 3/5 =
  12. 12.5/7 + 1/10 =
  13. 13.2/6 + 2/5 =
  14. 14.6/11 + 2/3 =
  15. 15.2/10 + 2/11 =
  16. 16.7/10 + 3/6 =
  17. 17.3/5 + 7/12 =
  18. 18.10/12 − 9/11 =
  19. 19.1/4 + 3/9 =
  20. 20.4/12 − 1/4 =
  21. 21.1/5 − 1/8 =
  22. 22.8/10 + 6/8 =
  23. 23.3/6 + 1/7 =
  24. 24.2/9 + 1/7 =
  25. 25.1/4 + 2/5 =
  26. 26.5/9 + 8/11 =
  27. 27.2/3 + 6/11 =
  28. 28.1/5 + 1/2 =
  29. 29.5/7 − 1/3 =
  30. 30.3/9 + 1/4 =
  31. 31.1/12 + 5/12 =
  32. 32.11/12 + 1/12 =
  33. 33.2/3 + 6/11 =
  34. 34.1/4 + 8/10 =
  35. 35.9/12 + 1/4 =
  36. 36.5/11 − 4/9 =
  37. 37.1/5 + 2/4 =
  38. 38.9/10 + 1/6 =
  39. 39.6/9 − 3/5 =
  40. 40.2/3 − 1/2 =

Answer key

  1. 23/63
  2. 1
  3. 9/8
  4. 7/6
  5. 49/99
  6. 1/2
  7. 1/10
  8. 4/9
  9. 17/15
  10. 7/20
  11. 11/10
  12. 57/70
  13. 11/15
  14. 40/33
  15. 21/55
  16. 6/5
  17. 71/60
  18. 1/66
  19. 7/12
  20. 1/12
  21. 3/40
  22. 31/20
  23. 9/14
  24. 23/63
  25. 13/20
  26. 127/99
  27. 40/33
  28. 7/10
  29. 8/21
  30. 7/12
  31. 1/2
  32. 1
  33. 40/33
  34. 21/20
  35. 1
  36. 1/99
  37. 7/10
  38. 16/15
  39. 1/15
  40. 1/6

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