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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 641 · 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. 1.2/7 + 7/10 =
  2. 2.1/3 + 4/8 =
  3. 3.4/6 + 8/11 =
  4. 4.4/10 − 1/7 =
  5. 5.6/12 + 1/5 =
  6. 6.3/7 + 6/7 =
  7. 7.6/7 + 1/2 =
  8. 8.2/4 + 5/7 =
  9. 9.1/2 + 1/8 =
  10. 10.1/7 + 6/12 =
  11. 11.4/7 − 5/9 =
  12. 12.6/7 + 1/2 =
  13. 13.1/2 + 2/4 =
  14. 14.1/3 + 2/12 =
  15. 15.1/5 + 1/4 =
  16. 16.1/3 + 7/10 =
  17. 17.2/5 + 1/5 =
  18. 18.4/6 + 1/2 =
  19. 19.7/9 − 3/9 =
  20. 20.3/7 + 1/2 =
  21. 21.3/6 + 1/2 =
  22. 22.1/2 + 2/5 =
  23. 23.1/2 + 1/2 =
  24. 24.2/3 + 8/11 =
  25. 25.6/9 − 1/2 =
  26. 26.4/6 + 9/11 =
  27. 27.1/4 + 1/4 =
  28. 28.3/5 − 1/3 =
  29. 29.2/3 + 6/8 =
  30. 30.2/11 + 6/7 =
  31. 31.1/9 + 1/7 =
  32. 32.3/12 + 3/4 =
  33. 33.9/12 + 6/9 =
  34. 34.5/6 + 3/7 =
  35. 35.3/10 + 1/2 =
  36. 36.2/3 − 4/8 =
  37. 37.4/5 + 1/11 =
  38. 38.1/4 + 1/9 =
  39. 39.3/5 − 1/2 =
  40. 40.5/7 − 3/5 =

Answer key

  1. 69/70
  2. 5/6
  3. 46/33
  4. 9/35
  5. 7/10
  6. 9/7
  7. 19/14
  8. 17/14
  9. 5/8
  10. 9/14
  11. 1/63
  12. 19/14
  13. 1
  14. 1/2
  15. 9/20
  16. 31/30
  17. 3/5
  18. 7/6
  19. 4/9
  20. 13/14
  21. 1
  22. 9/10
  23. 1
  24. 46/33
  25. 1/6
  26. 49/33
  27. 1/2
  28. 4/15
  29. 17/12
  30. 80/77
  31. 16/63
  32. 1
  33. 17/12
  34. 53/42
  35. 4/5
  36. 1/6
  37. 49/55
  38. 13/36
  39. 1/10
  40. 4/35

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