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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 421 · 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. 1.1/3 + 4/12 =
  2. 2.7/10 + 5/12 =
  3. 3.3/5 − 2/11 =
  4. 4.2/7 + 8/11 =
  5. 5.1/2 + 2/4 =
  6. 6.5/6 − 1/2 =
  7. 7.2/9 + 1/4 =
  8. 8.1/3 + 2/6 =
  9. 9.7/10 + 6/8 =
  10. 10.7/9 − 2/5 =
  11. 11.6/12 − 4/10 =
  12. 12.1/2 − 1/12 =
  13. 13.6/10 − 1/4 =
  14. 14.7/8 − 2/11 =
  15. 15.8/10 − 1/9 =
  16. 16.4/6 − 2/6 =
  17. 17.1/2 − 1/3 =
  18. 18.4/5 + 3/5 =
  19. 19.3/8 − 1/5 =
  20. 20.1/2 + 2/4 =
  21. 21.6/8 − 7/10 =
  22. 22.1/3 + 1/7 =
  23. 23.1/8 + 1/12 =
  24. 24.5/6 − 1/2 =
  25. 25.4/12 + 2/3 =
  26. 26.2/3 − 3/7 =
  27. 27.5/6 + 3/7 =
  28. 28.3/7 − 3/9 =
  29. 29.2/10 + 2/7 =
  30. 30.4/6 − 1/7 =
  31. 31.3/7 + 5/6 =
  32. 32.6/7 − 1/3 =
  33. 33.8/10 − 2/3 =
  34. 34.1/2 + 1/7 =
  35. 35.1/9 + 3/4 =
  36. 36.2/7 + 1/7 =
  37. 37.2/3 + 1/2 =
  38. 38.4/6 − 1/2 =
  39. 39.1/4 + 5/7 =
  40. 40.4/6 + 7/11 =

Answer key

  1. 2/3
  2. 67/60
  3. 23/55
  4. 78/77
  5. 1
  6. 1/3
  7. 17/36
  8. 2/3
  9. 29/20
  10. 17/45
  11. 1/10
  12. 5/12
  13. 7/20
  14. 61/88
  15. 31/45
  16. 1/3
  17. 1/6
  18. 7/5
  19. 7/40
  20. 1
  21. 1/20
  22. 10/21
  23. 5/24
  24. 1/3
  25. 1
  26. 5/21
  27. 53/42
  28. 2/21
  29. 17/35
  30. 11/21
  31. 53/42
  32. 11/21
  33. 2/15
  34. 9/14
  35. 31/36
  36. 3/7
  37. 7/6
  38. 1/6
  39. 27/28
  40. 43/33

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