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Subtract 30/18 from 12/14

1st number: 12/14, 2nd number: 1 12/18

12/14 - 30/18 is -17/21.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 14 and 18 is 126
  2. For the 1st fraction, since 14 × 9 = 126,
    12/14 = 12 × 9/14 × 9 = 108/126
  3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
    30/18 = 30 × 7/18 × 7 = 210/126
  4. Subtract the two fractions:
    108/126 - 210/126 = 108 - 210/126 = -102/126
  5. After reducing the fraction, the answer is -17/21

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