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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 833 · 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. 1.2/7 + 6/11 =
  2. 2.7/10 + 1/2 =
  3. 3.5/10 + 1/2 =
  4. 4.2/7 + 2/4 =
  5. 5.2/11 + 2/3 =
  6. 6.1/3 + 4/11 =
  7. 7.1/11 + 6/7 =
  8. 8.3/4 + 5/11 =
  9. 9.3/10 + 6/7 =
  10. 10.5/7 − 2/3 =
  11. 11.3/5 + 1/2 =
  12. 12.3/4 + 5/10 =
  13. 13.5/7 + 1/2 =
  14. 14.1/3 + 4/5 =
  15. 15.4/6 + 2/3 =
  16. 16.3/11 − 2/9 =
  17. 17.3/9 + 2/3 =
  18. 18.3/7 − 1/9 =
  19. 19.3/7 − 4/11 =
  20. 20.2/5 + 3/6 =
  21. 21.7/9 − 1/5 =
  22. 22.4/6 − 3/6 =
  23. 23.6/7 − 3/11 =
  24. 24.4/5 + 3/8 =
  25. 25.5/7 − 1/5 =
  26. 26.5/6 + 3/4 =
  27. 27.5/8 − 4/12 =
  28. 28.7/8 + 2/4 =
  29. 29.5/9 − 4/12 =
  30. 30.5/11 + 3/4 =
  31. 31.4/10 + 5/11 =
  32. 32.7/8 + 2/7 =
  33. 33.4/7 + 9/11 =
  34. 34.2/3 − 4/9 =
  35. 35.7/9 + 1/4 =
  36. 36.1/7 + 1/2 =
  37. 37.5/7 + 3/5 =
  38. 38.10/11 − 2/10 =
  39. 39.2/6 + 1/7 =
  40. 40.5/12 + 2/6 =

Answer key

  1. 64/77
  2. 6/5
  3. 1
  4. 11/14
  5. 28/33
  6. 23/33
  7. 73/77
  8. 53/44
  9. 81/70
  10. 1/21
  11. 11/10
  12. 5/4
  13. 17/14
  14. 17/15
  15. 4/3
  16. 5/99
  17. 1
  18. 20/63
  19. 5/77
  20. 9/10
  21. 26/45
  22. 1/6
  23. 45/77
  24. 47/40
  25. 18/35
  26. 19/12
  27. 7/24
  28. 11/8
  29. 2/9
  30. 53/44
  31. 47/55
  32. 65/56
  33. 107/77
  34. 2/9
  35. 37/36
  36. 9/14
  37. 46/35
  38. 39/55
  39. 10/21
  40. 3/4

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