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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 621 · 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. 1.6/10 + 9/12 =
  2. 2.3/10 + 4/8 =
  3. 3.5/8 − 1/3 =
  4. 4.1/2 + 5/8 =
  5. 5.1/2 + 3/4 =
  6. 6.4/5 − 3/4 =
  7. 7.2/5 − 1/3 =
  8. 8.6/11 − 1/11 =
  9. 9.2/9 + 1/5 =
  10. 10.1/4 + 3/4 =
  11. 11.4/7 + 5/9 =
  12. 12.6/11 + 1/2 =
  13. 13.6/9 − 3/5 =
  14. 14.3/5 + 3/5 =
  15. 15.2/3 − 1/7 =
  16. 16.5/6 + 2/5 =
  17. 17.1/2 + 3/11 =
  18. 18.2/3 − 3/8 =
  19. 19.1/3 − 2/10 =
  20. 20.3/4 − 2/3 =
  21. 21.7/9 − 1/4 =
  22. 22.6/11 − 1/3 =
  23. 23.4/9 + 4/12 =
  24. 24.1/2 + 5/12 =
  25. 25.9/11 + 3/8 =
  26. 26.5/12 + 1/2 =
  27. 27.7/10 − 1/7 =
  28. 28.5/9 + 3/4 =
  29. 29.2/3 − 2/4 =
  30. 30.5/10 − 1/3 =
  31. 31.5/6 + 1/2 =
  32. 32.7/11 + 4/7 =
  33. 33.4/10 − 2/8 =
  34. 34.1/5 + 1/10 =
  35. 35.9/10 + 1/9 =
  36. 36.3/7 + 9/10 =
  37. 37.3/5 − 2/9 =
  38. 38.2/3 + 7/9 =
  39. 39.8/9 + 5/12 =
  40. 40.3/4 + 1/4 =

Answer key

  1. 27/20
  2. 4/5
  3. 7/24
  4. 9/8
  5. 5/4
  6. 1/20
  7. 1/15
  8. 5/11
  9. 19/45
  10. 1
  11. 71/63
  12. 23/22
  13. 1/15
  14. 6/5
  15. 11/21
  16. 37/30
  17. 17/22
  18. 7/24
  19. 2/15
  20. 1/12
  21. 19/36
  22. 7/33
  23. 7/9
  24. 11/12
  25. 105/88
  26. 11/12
  27. 39/70
  28. 47/36
  29. 1/6
  30. 1/6
  31. 4/3
  32. 93/77
  33. 3/20
  34. 3/10
  35. 91/90
  36. 93/70
  37. 17/45
  38. 13/9
  39. 47/36
  40. 1

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