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Subtract 30/81 from 56/45

1st number: 1 11/45, 2nd number: 30/81

56/45 - 30/81 is 118/135.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 405
  2. For the 1st fraction, since 45 × 9 = 405,
    56/45 = 56 × 9/45 × 9 = 504/405
  3. Likewise, for the 2nd fraction, since 81 × 5 = 405,
    30/81 = 30 × 5/81 × 5 = 150/405
  4. Subtract the two like fractions:
    504/405 - 150/405 = 504 - 150/405 = 354/405
  5. After reducing the fraction, the answer is 118/135

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