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Subtract 30/81 from 56/15

1st number: 3 11/15, 2nd number: 30/81

56/15 - 30/81 is 454/135.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 81 is 405
  2. For the 1st fraction, since 15 × 27 = 405,
    56/15 = 56 × 27/15 × 27 = 1512/405
  3. Likewise, for the 2nd fraction, since 81 × 5 = 405,
    30/81 = 30 × 5/81 × 5 = 150/405
  4. Subtract the two fractions:
    1512/405 - 150/405 = 1512 - 150/405 = 1362/405
  5. After reducing the fraction, the answer is 454/135
  6. In mixed form: 349/135

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