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Subtract 4/6 from 21/12

1st number: 1 9/12, 2nd number: 4/6

21/12 - 4/6 is 13/12.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 6 is 12

    Next, find the equivalent fraction of both fractional numbers with denominator 12
  2. For the 1st fraction, since 12 × 1 = 12,
    21/12 = 21 × 1/12 × 1 = 21/12
  3. Likewise, for the 2nd fraction, since 6 × 2 = 12,
    4/6 = 4 × 2/6 × 2 = 8/12
  4. Subtract the two like fractions:
    21/12 - 8/12 = 21 - 8/12 = 13/12
  5. In mixed form: 11/12

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