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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 129 · 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. 1.2/12 + 1/2 =
  2. 2.10/11 − 3/11 =
  3. 3.2/4 + 1/7 =
  4. 4.2/7 + 2/8 =
  5. 5.6/7 − 2/11 =
  6. 6.1/10 + 1/4 =
  7. 7.3/6 + 6/8 =
  8. 8.2/3 − 1/2 =
  9. 9.6/7 + 1/3 =
  10. 10.1/8 + 11/12 =
  11. 11.9/12 + 1/3 =
  12. 12.4/9 + 2/6 =
  13. 13.2/3 + 1/4 =
  14. 14.4/8 + 1/3 =
  15. 15.4/8 − 3/10 =
  16. 16.6/9 + 7/11 =
  17. 17.1/2 + 3/4 =
  18. 18.1/2 + 1/2 =
  19. 19.8/9 + 1/5 =
  20. 20.3/6 + 2/5 =
  21. 21.8/10 + 1/11 =
  22. 22.2/3 − 3/6 =
  23. 23.1/2 − 2/5 =
  24. 24.7/8 + 1/2 =
  25. 25.4/10 + 4/6 =
  26. 26.3/8 + 10/11 =
  27. 27.3/4 + 2/7 =
  28. 28.4/11 + 1/2 =
  29. 29.1/9 + 2/10 =
  30. 30.9/11 + 2/5 =
  31. 31.1/2 + 3/6 =
  32. 32.1/10 + 3/7 =
  33. 33.1/2 + 5/8 =
  34. 34.4/7 + 1/4 =
  35. 35.1/2 − 2/9 =
  36. 36.1/7 + 4/6 =
  37. 37.8/11 + 6/12 =
  38. 38.1/4 + 2/7 =
  39. 39.4/5 + 2/3 =
  40. 40.3/8 − 1/12 =

Answer key

  1. 2/3
  2. 7/11
  3. 9/14
  4. 15/28
  5. 52/77
  6. 7/20
  7. 5/4
  8. 1/6
  9. 25/21
  10. 25/24
  11. 13/12
  12. 7/9
  13. 11/12
  14. 5/6
  15. 1/5
  16. 43/33
  17. 5/4
  18. 1
  19. 49/45
  20. 9/10
  21. 49/55
  22. 1/6
  23. 1/10
  24. 11/8
  25. 16/15
  26. 113/88
  27. 29/28
  28. 19/22
  29. 14/45
  30. 67/55
  31. 1
  32. 37/70
  33. 9/8
  34. 23/28
  35. 5/18
  36. 17/21
  37. 27/22
  38. 15/28
  39. 22/15
  40. 7/24

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