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Subtract 56/45 from 1/81

1st number: 1/81, 2nd number: 1 11/45

1/81 - 56/45 is -499/405.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 81 and 45 is 405

    Next, find the equivalent fraction of both fractional numbers with denominator 405
  2. For the 1st fraction, since 81 × 5 = 405,
    1/81 = 1 × 5/81 × 5 = 5/405
  3. Likewise, for the 2nd fraction, since 45 × 9 = 405,
    56/45 = 56 × 9/45 × 9 = 504/405
  4. Subtract the two like fractions:
    5/405 - 504/405 = 5 - 504/405 = -499/405

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