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Answers.everydaycalculation.com » Compare fractions

Compare 21/45 and 24/12

1st number: 21/45, 2nd number: 2 0/12

21/45 is smaller than 24/12

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 12 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 45 × 4 = 180,
    21/45 = 21 × 4/45 × 4 = 84/180
  3. Likewise, for the 2nd fraction, since 12 × 15 = 180,
    24/12 = 24 × 15/12 × 15 = 360/180
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 84/180 < 360/180 or 21/45 < 24/12

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