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Subtract 16/27 from 21/12

1st number: 1 9/12, 2nd number: 16/27

21/12 - 16/27 is 125/108.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 27 is 108

    Next, find the equivalent fraction of both fractional numbers with denominator 108
  2. For the 1st fraction, since 12 × 9 = 108,
    21/12 = 21 × 9/12 × 9 = 189/108
  3. Likewise, for the 2nd fraction, since 27 × 4 = 108,
    16/27 = 16 × 4/27 × 4 = 64/108
  4. Subtract the two like fractions:
    189/108 - 64/108 = 189 - 64/108 = 125/108
  5. In mixed form: 117/108

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