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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 160 · 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. 1.7/8 − 2/8 =
  2. 2.6/7 − 5/6 =
  3. 3.3/4 − 7/11 =
  4. 4.3/9 − 2/10 =
  5. 5.4/7 + 6/8 =
  6. 6.2/5 − 2/8 =
  7. 7.1/8 + 4/7 =
  8. 8.2/3 + 10/12 =
  9. 9.1/2 + 6/12 =
  10. 10.3/7 + 1/3 =
  11. 11.2/4 − 1/4 =
  12. 12.8/9 − 7/9 =
  13. 13.1/2 + 4/6 =
  14. 14.2/8 + 1/3 =
  15. 15.1/3 + 1/3 =
  16. 16.5/7 − 1/2 =
  17. 17.10/11 − 5/6 =
  18. 18.2/11 − 1/8 =
  19. 19.4/6 − 6/10 =
  20. 20.1/3 + 6/7 =
  21. 21.1/4 + 8/10 =
  22. 22.1/2 + 1/2 =
  23. 23.5/11 + 2/7 =
  24. 24.2/9 + 8/10 =
  25. 25.1/4 + 2/7 =
  26. 26.3/4 − 4/7 =
  27. 27.1/2 + 2/3 =
  28. 28.3/8 − 1/10 =
  29. 29.10/11 + 2/10 =
  30. 30.5/6 − 1/3 =
  31. 31.1/2 + 2/3 =
  32. 32.2/10 − 1/8 =
  33. 33.1/2 − 1/3 =
  34. 34.5/7 + 3/5 =
  35. 35.2/3 − 1/8 =
  36. 36.9/10 − 4/6 =
  37. 37.5/12 − 1/3 =
  38. 38.2/3 − 3/7 =
  39. 39.5/11 + 4/9 =
  40. 40.6/7 − 4/5 =

Answer key

  1. 5/8
  2. 1/42
  3. 5/44
  4. 2/15
  5. 37/28
  6. 3/20
  7. 39/56
  8. 3/2
  9. 1
  10. 16/21
  11. 1/4
  12. 1/9
  13. 7/6
  14. 7/12
  15. 2/3
  16. 3/14
  17. 5/66
  18. 5/88
  19. 1/15
  20. 25/21
  21. 21/20
  22. 1
  23. 57/77
  24. 46/45
  25. 15/28
  26. 5/28
  27. 7/6
  28. 11/40
  29. 61/55
  30. 1/2
  31. 7/6
  32. 3/40
  33. 1/6
  34. 46/35
  35. 13/24
  36. 7/30
  37. 1/12
  38. 5/21
  39. 89/99
  40. 2/35

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