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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 901 · 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. 1.6/11 + 1/5 =
  2. 2.1/4 + 2/3 =
  3. 3.1/3 + 1/3 =
  4. 4.9/11 − 2/8 =
  5. 5.9/12 − 3/10 =
  6. 6.5/7 + 2/3 =
  7. 7.1/2 + 1/3 =
  8. 8.5/8 + 1/3 =
  9. 9.1/11 + 3/4 =
  10. 10.7/10 + 3/7 =
  11. 11.1/2 − 5/12 =
  12. 12.2/3 + 7/11 =
  13. 13.3/5 − 3/7 =
  14. 14.1/2 + 2/3 =
  15. 15.3/8 + 3/5 =
  16. 16.6/9 + 2/6 =
  17. 17.1/8 + 4/5 =
  18. 18.9/11 + 6/10 =
  19. 19.5/7 + 2/9 =
  20. 20.5/7 − 6/11 =
  21. 21.3/7 + 2/3 =
  22. 22.1/2 + 2/4 =
  23. 23.3/4 − 2/12 =
  24. 24.5/6 − 5/7 =
  25. 25.2/4 − 5/11 =
  26. 26.1/8 + 1/8 =
  27. 27.2/6 + 2/6 =
  28. 28.3/5 + 1/3 =
  29. 29.1/2 + 7/9 =
  30. 30.1/2 + 5/12 =
  31. 31.2/6 + 4/5 =
  32. 32.2/3 + 2/3 =
  33. 33.6/7 + 8/12 =
  34. 34.5/11 + 2/3 =
  35. 35.2/7 + 5/12 =
  36. 36.5/12 + 4/5 =
  37. 37.4/10 − 1/7 =
  38. 38.3/6 + 8/11 =
  39. 39.2/3 + 8/9 =
  40. 40.4/12 + 6/8 =

Answer key

  1. 41/55
  2. 11/12
  3. 2/3
  4. 25/44
  5. 9/20
  6. 29/21
  7. 5/6
  8. 23/24
  9. 37/44
  10. 79/70
  11. 1/12
  12. 43/33
  13. 6/35
  14. 7/6
  15. 39/40
  16. 1
  17. 37/40
  18. 78/55
  19. 59/63
  20. 13/77
  21. 23/21
  22. 1
  23. 7/12
  24. 5/42
  25. 1/22
  26. 1/4
  27. 2/3
  28. 14/15
  29. 23/18
  30. 11/12
  31. 17/15
  32. 4/3
  33. 32/21
  34. 37/33
  35. 59/84
  36. 73/60
  37. 9/35
  38. 27/22
  39. 14/9
  40. 13/12

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