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Subtract 56/27 from 81/30

1st number: 2 21/30, 2nd number: 2 2/27

81/30 - 56/27 is 169/270.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 27 is 270
  2. For the 1st fraction, since 30 × 9 = 270,
    81/30 = 81 × 9/30 × 9 = 729/270
  3. Likewise, for the 2nd fraction, since 27 × 10 = 270,
    56/27 = 56 × 10/27 × 10 = 560/270
  4. Subtract the two fractions:
    729/270 - 560/270 = 729 - 560/270 = 169/270

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