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Subtract 1/12 from 42/2

1st number: 21 0/2, 2nd number: 1/12

42/2 - 1/12 is 251/12.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 12 is 12

    Next, find the equivalent fraction of both fractional numbers with denominator 12
  2. For the 1st fraction, since 2 × 6 = 12,
    42/2 = 42 × 6/2 × 6 = 252/12
  3. Likewise, for the 2nd fraction, since 12 × 1 = 12,
    1/12 = 1 × 1/12 × 1 = 1/12
  4. Subtract the two like fractions:
    252/12 - 1/12 = 252 - 1/12 = 251/12
  5. In mixed form: 2011/12

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