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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 150 · 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. 1.1/10 + 2/9 =
  2. 2.3/9 + 1/8 =
  3. 3.1/4 − 1/8 =
  4. 4.1/2 + 1/2 =
  5. 5.5/7 − 3/7 =
  6. 6.1/3 − 2/10 =
  7. 7.6/8 + 1/5 =
  8. 8.4/10 + 1/10 =
  9. 9.2/5 + 7/10 =
  10. 10.3/5 + 1/4 =
  11. 11.1/9 + 1/2 =
  12. 12.2/3 + 2/3 =
  13. 13.1/2 + 6/8 =
  14. 14.7/10 − 2/3 =
  15. 15.1/5 + 1/6 =
  16. 16.2/11 + 4/11 =
  17. 17.1/7 + 6/10 =
  18. 18.4/12 − 1/4 =
  19. 19.1/8 + 2/5 =
  20. 20.1/3 + 1/10 =
  21. 21.6/10 + 6/10 =
  22. 22.1/2 + 1/2 =
  23. 23.1/6 + 1/2 =
  24. 24.5/6 − 1/2 =
  25. 25.1/4 + 1/6 =
  26. 26.1/2 + 2/3 =
  27. 27.2/3 + 2/9 =
  28. 28.5/6 − 1/6 =
  29. 29.1/5 + 1/4 =
  30. 30.4/7 + 5/9 =
  31. 31.4/7 + 2/9 =
  32. 32.3/7 − 1/4 =
  33. 33.6/7 + 1/2 =
  34. 34.7/8 − 7/10 =
  35. 35.2/6 − 1/5 =
  36. 36.7/8 + 1/4 =
  37. 37.4/10 − 1/10 =
  38. 38.4/6 + 6/8 =
  39. 39.3/6 − 1/7 =
  40. 40.8/11 + 1/5 =

Answer key

  1. 29/90
  2. 11/24
  3. 1/8
  4. 1
  5. 2/7
  6. 2/15
  7. 19/20
  8. 1/2
  9. 11/10
  10. 17/20
  11. 11/18
  12. 4/3
  13. 5/4
  14. 1/30
  15. 11/30
  16. 6/11
  17. 26/35
  18. 1/12
  19. 21/40
  20. 13/30
  21. 6/5
  22. 1
  23. 2/3
  24. 1/3
  25. 5/12
  26. 7/6
  27. 8/9
  28. 2/3
  29. 9/20
  30. 71/63
  31. 50/63
  32. 5/28
  33. 19/14
  34. 7/40
  35. 2/15
  36. 9/8
  37. 3/10
  38. 17/12
  39. 5/14
  40. 51/55

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