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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 504 · 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. 1.5/7 − 4/7 =
  2. 2.1/3 + 1/2 =
  3. 3.7/11 − 3/5 =
  4. 4.1/4 + 5/6 =
  5. 5.3/7 − 3/11 =
  6. 6.7/8 − 2/3 =
  7. 7.3/9 − 1/8 =
  8. 8.7/11 + 3/9 =
  9. 9.3/10 + 6/8 =
  10. 10.1/2 + 1/2 =
  11. 11.5/8 − 6/11 =
  12. 12.5/9 − 3/7 =
  13. 13.3/4 + 8/12 =
  14. 14.1/5 + 2/7 =
  15. 15.2/8 + 2/3 =
  16. 16.3/8 + 7/9 =
  17. 17.1/2 − 1/4 =
  18. 18.5/7 − 3/12 =
  19. 19.3/5 − 4/12 =
  20. 20.3/9 + 1/2 =
  21. 21.6/8 + 7/9 =
  22. 22.6/12 + 2/3 =
  23. 23.6/7 + 4/8 =
  24. 24.2/9 + 4/7 =
  25. 25.1/2 − 1/3 =
  26. 26.4/6 − 1/2 =
  27. 27.1/6 + 1/2 =
  28. 28.2/5 + 3/5 =
  29. 29.2/9 + 8/10 =
  30. 30.5/7 + 2/6 =
  31. 31.7/8 + 1/3 =
  32. 32.2/4 − 1/6 =
  33. 33.2/5 + 4/10 =
  34. 34.4/5 + 2/4 =
  35. 35.7/9 + 1/7 =
  36. 36.4/8 + 2/4 =
  37. 37.2/3 + 8/12 =
  38. 38.4/6 + 2/9 =
  39. 39.4/10 + 1/2 =
  40. 40.10/11 + 7/10 =

Answer key

  1. 1/7
  2. 5/6
  3. 2/55
  4. 13/12
  5. 12/77
  6. 5/24
  7. 5/24
  8. 32/33
  9. 21/20
  10. 1
  11. 7/88
  12. 8/63
  13. 17/12
  14. 17/35
  15. 11/12
  16. 83/72
  17. 1/4
  18. 13/28
  19. 4/15
  20. 5/6
  21. 55/36
  22. 7/6
  23. 19/14
  24. 50/63
  25. 1/6
  26. 1/6
  27. 2/3
  28. 1
  29. 46/45
  30. 22/21
  31. 29/24
  32. 1/3
  33. 4/5
  34. 13/10
  35. 58/63
  36. 1
  37. 4/3
  38. 8/9
  39. 9/10
  40. 177/110

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