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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 158 · 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. 1.5/11 + 9/10 =
  2. 2.5/11 + 1/2 =
  3. 3.1/3 + 2/8 =
  4. 4.3/8 − 1/3 =
  5. 5.6/10 − 1/2 =
  6. 6.1/3 + 1/3 =
  7. 7.9/12 + 3/4 =
  8. 8.2/3 + 5/7 =
  9. 9.1/8 + 3/4 =
  10. 10.3/4 + 2/6 =
  11. 11.2/5 + 2/3 =
  12. 12.2/3 + 7/10 =
  13. 13.3/5 − 1/2 =
  14. 14.3/4 − 4/7 =
  15. 15.1/7 + 8/9 =
  16. 16.1/2 − 3/8 =
  17. 17.3/8 + 3/10 =
  18. 18.6/10 + 6/12 =
  19. 19.11/12 + 1/7 =
  20. 20.6/9 + 1/3 =
  21. 21.2/4 + 1/2 =
  22. 22.1/2 + 4/8 =
  23. 23.2/9 + 6/9 =
  24. 24.3/10 − 2/7 =
  25. 25.1/2 + 3/9 =
  26. 26.2/3 − 5/10 =
  27. 27.8/12 + 5/8 =
  28. 28.3/4 − 5/12 =
  29. 29.2/5 − 1/11 =
  30. 30.2/3 + 1/3 =
  31. 31.6/12 − 4/10 =
  32. 32.1/3 + 3/8 =
  33. 33.1/7 + 5/9 =
  34. 34.9/10 − 2/8 =
  35. 35.2/3 + 3/12 =
  36. 36.7/8 − 1/5 =
  37. 37.8/12 + 2/3 =
  38. 38.1/4 + 7/8 =
  39. 39.1/3 + 8/11 =
  40. 40.6/9 − 1/8 =

Answer key

  1. 149/110
  2. 21/22
  3. 7/12
  4. 1/24
  5. 1/10
  6. 2/3
  7. 3/2
  8. 29/21
  9. 7/8
  10. 13/12
  11. 16/15
  12. 41/30
  13. 1/10
  14. 5/28
  15. 65/63
  16. 1/8
  17. 27/40
  18. 11/10
  19. 89/84
  20. 1
  21. 1
  22. 1
  23. 8/9
  24. 1/70
  25. 5/6
  26. 1/6
  27. 31/24
  28. 1/3
  29. 17/55
  30. 1
  31. 1/10
  32. 17/24
  33. 44/63
  34. 13/20
  35. 11/12
  36. 27/40
  37. 4/3
  38. 9/8
  39. 35/33
  40. 13/24

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