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Subtract 21/54 from 42/2

1st number: 21 0/2, 2nd number: 21/54

42/2 - 21/54 is 371/18.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 54 is 54
  2. For the 1st fraction, since 2 × 27 = 54,
    42/2 = 42 × 27/2 × 27 = 1134/54
  3. Likewise, for the 2nd fraction, since 54 × 1 = 54,
    21/54 = 21 × 1/54 × 1 = 21/54
  4. Subtract the two fractions:
    1134/54 - 21/54 = 1134 - 21/54 = 1113/54
  5. After reducing the fraction, the answer is 371/18
  6. In mixed form: 2011/18

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