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Subtract 30/27 from 12/15

1st number: 12/15, 2nd number: 1 3/27

12/15 - 30/27 is -14/45.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 27 is 135
  2. For the 1st fraction, since 15 × 9 = 135,
    12/15 = 12 × 9/15 × 9 = 108/135
  3. Likewise, for the 2nd fraction, since 27 × 5 = 135,
    30/27 = 30 × 5/27 × 5 = 150/135
  4. Subtract the two fractions:
    108/135 - 150/135 = 108 - 150/135 = -42/135
  5. After reducing the fraction, the answer is -14/45

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