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Subtract 21/12 from 18/2

1st number: 9 0/2, 2nd number: 1 9/12

18/2 - 21/12 is 29/4.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 12 is 12
  2. For the 1st fraction, since 2 × 6 = 12,
    18/2 = 18 × 6/2 × 6 = 108/12
  3. Likewise, for the 2nd fraction, since 12 × 1 = 12,
    21/12 = 21 × 1/12 × 1 = 21/12
  4. Subtract the two fractions:
    108/12 - 21/12 = 108 - 21/12 = 87/12
  5. After reducing the fraction, the answer is 29/4
  6. In mixed form: 71/4

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