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Subtract 2/21 from 27/12

1st number: 2 3/12, 2nd number: 2/21

27/12 - 2/21 is 181/84.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 21 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 12 × 7 = 84,
    27/12 = 27 × 7/12 × 7 = 189/84
  3. Likewise, for the 2nd fraction, since 21 × 4 = 84,
    2/21 = 2 × 4/21 × 4 = 8/84
  4. Subtract the two like fractions:
    189/84 - 8/84 = 189 - 8/84 = 181/84
  5. In mixed form: 213/84

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