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Answers.everydaycalculation.com » Compare fractions

Compare 21/12 and 9/8

1st number: 1 9/12, 2nd number: 1 1/8

21/12 is greater than 9/8

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 8 is 24

    Next, find the equivalent fraction of both fractional numbers with denominator 24
  2. For the 1st fraction, since 12 × 2 = 24,
    21/12 = 21 × 2/12 × 2 = 42/24
  3. Likewise, for the 2nd fraction, since 8 × 3 = 24,
    9/8 = 9 × 3/8 × 3 = 27/24
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 42/24 > 27/24 or 21/12 > 9/8

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