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Answers.everydaycalculation.com » Compare fractions

Compare 15/30 and 81/56

1st number: 15/30, 2nd number: 1 25/56

15/30 is smaller than 81/56

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 56 is 840

    Next, find the equivalent fraction of both fractional numbers with denominator 840
  2. For the 1st fraction, since 30 × 28 = 840,
    15/30 = 15 × 28/30 × 28 = 420/840
  3. Likewise, for the 2nd fraction, since 56 × 15 = 840,
    81/56 = 81 × 15/56 × 15 = 1215/840
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 420/840 < 1215/840 or 15/30 < 81/56

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