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Adding and Subtracting Fractions Worksheet

Vedic maths trick 33: Adding and subtracting fractions · Set 638 · 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. 1.9/12 + 2/8 =
  2. 2.9/10 − 2/8 =
  3. 3.2/5 + 1/2 =
  4. 4.4/11 + 4/12 =
  5. 5.4/7 + 7/11 =
  6. 6.5/6 + 5/7 =
  7. 7.9/12 − 2/4 =
  8. 8.7/9 + 3/5 =
  9. 9.3/10 + 1/4 =
  10. 10.3/9 + 3/4 =
  11. 11.6/9 − 1/2 =
  12. 12.5/6 − 2/3 =
  13. 13.1/11 + 3/4 =
  14. 14.1/2 + 2/4 =
  15. 15.2/5 + 1/2 =
  16. 16.1/2 − 3/11 =
  17. 17.7/12 + 3/6 =
  18. 18.7/11 + 5/7 =
  19. 19.3/7 − 1/3 =
  20. 20.5/8 + 3/4 =
  21. 21.6/11 − 4/12 =
  22. 22.7/8 − 1/9 =
  23. 23.3/5 − 1/2 =
  24. 24.3/11 + 4/8 =
  25. 25.5/6 − 1/7 =
  26. 26.1/2 − 1/5 =
  27. 27.2/5 + 4/6 =
  28. 28.3/7 + 3/4 =
  29. 29.2/3 − 3/11 =
  30. 30.2/6 − 1/8 =
  31. 31.2/7 + 1/2 =
  32. 32.3/12 + 3/4 =
  33. 33.8/10 + 1/5 =
  34. 34.1/9 + 2/3 =
  35. 35.2/9 + 1/7 =
  36. 36.4/11 − 1/8 =
  37. 37.5/6 − 1/10 =
  38. 38.6/9 − 3/8 =
  39. 39.1/2 + 2/4 =
  40. 40.3/6 − 1/3 =

Answer key

  1. 1
  2. 13/20
  3. 9/10
  4. 23/33
  5. 93/77
  6. 65/42
  7. 1/4
  8. 62/45
  9. 11/20
  10. 13/12
  11. 1/6
  12. 1/6
  13. 37/44
  14. 1
  15. 9/10
  16. 5/22
  17. 13/12
  18. 104/77
  19. 2/21
  20. 11/8
  21. 7/33
  22. 55/72
  23. 1/10
  24. 17/22
  25. 29/42
  26. 3/10
  27. 16/15
  28. 33/28
  29. 13/33
  30. 5/24
  31. 11/14
  32. 1
  33. 1
  34. 7/9
  35. 23/63
  36. 21/88
  37. 11/15
  38. 7/24
  39. 1
  40. 1/6

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