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Compare 21/12 and 3/18

1st number: 1 9/12, 2nd number: 3/18

21/12 is greater than 3/18

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 18 is 36
  2. For the 1st fraction, since 12 × 3 = 36,
    21/12 = 21 × 3/12 × 3 = 63/36
  3. Likewise, for the 2nd fraction, since 18 × 2 = 36,
    3/18 = 3 × 2/18 × 2 = 6/36
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 63/36 > 6/36 or 21/12 > 3/18

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