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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 597 · 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. 1.2/3 + 11/12 =
  2. 2.1/7 + 1/2 =
  3. 3.2/4 + 3/12 =
  4. 4.6/11 − 2/7 =
  5. 5.4/7 − 2/9 =
  6. 6.2/3 + 1/2 =
  7. 7.1/3 + 5/7 =
  8. 8.5/8 + 2/8 =
  9. 9.4/6 − 5/11 =
  10. 10.3/8 + 5/7 =
  11. 11.2/4 + 9/12 =
  12. 12.2/10 + 5/8 =
  13. 13.1/5 + 1/2 =
  14. 14.1/3 + 3/5 =
  15. 15.2/3 − 1/6 =
  16. 16.4/8 + 1/3 =
  17. 17.7/9 + 2/11 =
  18. 18.1/4 + 2/5 =
  19. 19.11/12 − 1/10 =
  20. 20.1/7 + 3/7 =
  21. 21.1/4 − 1/6 =
  22. 22.6/10 − 1/7 =
  23. 23.1/4 + 8/12 =
  24. 24.5/9 − 2/6 =
  25. 25.3/8 + 6/7 =
  26. 26.1/4 + 1/6 =
  27. 27.8/11 + 3/7 =
  28. 28.2/4 − 4/9 =
  29. 29.5/6 − 1/6 =
  30. 30.1/4 + 1/5 =
  31. 31.7/11 − 1/5 =
  32. 32.6/9 + 8/10 =
  33. 33.4/11 − 2/7 =
  34. 34.1/6 + 8/11 =
  35. 35.8/12 − 4/7 =
  36. 36.1/6 − 1/7 =
  37. 37.2/4 − 1/12 =
  38. 38.3/9 + 7/12 =
  39. 39.4/9 + 2/12 =
  40. 40.2/12 + 3/9 =

Answer key

  1. 19/12
  2. 9/14
  3. 3/4
  4. 20/77
  5. 22/63
  6. 7/6
  7. 22/21
  8. 7/8
  9. 7/33
  10. 61/56
  11. 5/4
  12. 33/40
  13. 7/10
  14. 14/15
  15. 1/2
  16. 5/6
  17. 95/99
  18. 13/20
  19. 49/60
  20. 4/7
  21. 1/12
  22. 16/35
  23. 11/12
  24. 2/9
  25. 69/56
  26. 5/12
  27. 89/77
  28. 1/18
  29. 2/3
  30. 9/20
  31. 24/55
  32. 22/15
  33. 6/77
  34. 59/66
  35. 2/21
  36. 1/42
  37. 5/12
  38. 11/12
  39. 11/18
  40. 1/2

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