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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 44 · 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 − 1/5 =
  2. 2.5/6 + 2/3 =
  3. 3.8/10 − 6/10 =
  4. 4.1/12 + 1/4 =
  5. 5.3/10 + 2/3 =
  6. 6.5/7 − 4/9 =
  7. 7.1/3 + 1/3 =
  8. 8.2/8 + 1/7 =
  9. 9.1/9 + 3/7 =
  10. 10.5/11 + 3/11 =
  11. 11.7/8 + 7/10 =
  12. 12.2/3 + 11/12 =
  13. 13.2/7 + 1/2 =
  14. 14.8/10 + 3/4 =
  15. 15.1/2 − 3/8 =
  16. 16.7/9 + 1/2 =
  17. 17.2/8 + 3/4 =
  18. 18.2/11 + 5/8 =
  19. 19.5/12 + 7/8 =
  20. 20.1/9 − 1/11 =
  21. 21.2/3 + 3/12 =
  22. 22.2/11 + 5/6 =
  23. 23.2/8 + 2/10 =
  24. 24.1/4 − 2/10 =
  25. 25.5/6 − 1/4 =
  26. 26.6/10 + 3/4 =
  27. 27.1/2 + 4/7 =
  28. 28.9/11 − 2/8 =
  29. 29.11/12 − 1/7 =
  30. 30.8/9 − 2/6 =
  31. 31.4/6 − 2/6 =
  32. 32.7/8 − 2/7 =
  33. 33.2/3 + 1/2 =
  34. 34.1/6 + 5/12 =
  35. 35.1/2 + 1/7 =
  36. 36.2/3 + 5/6 =
  37. 37.2/6 + 1/3 =
  38. 38.1/2 + 4/8 =
  39. 39.5/6 + 3/7 =
  40. 40.1/2 + 3/4 =

Answer key

  1. 7/15
  2. 3/2
  3. 1/5
  4. 1/3
  5. 29/30
  6. 17/63
  7. 2/3
  8. 11/28
  9. 34/63
  10. 8/11
  11. 63/40
  12. 19/12
  13. 11/14
  14. 31/20
  15. 1/8
  16. 23/18
  17. 1
  18. 71/88
  19. 31/24
  20. 2/99
  21. 11/12
  22. 67/66
  23. 9/20
  24. 1/20
  25. 7/12
  26. 27/20
  27. 15/14
  28. 25/44
  29. 65/84
  30. 5/9
  31. 1/3
  32. 33/56
  33. 7/6
  34. 7/12
  35. 9/14
  36. 3/2
  37. 2/3
  38. 1
  39. 53/42
  40. 5/4

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