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Answers.everydaycalculation.com » Compare fractions

Compare 81/90 and 80/56

1st number: 81/90, 2nd number: 1 24/56

81/90 is smaller than 80/56

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 56 is 2520

    Next, find the equivalent fraction of both fractional numbers with denominator 2520
  2. For the 1st fraction, since 90 × 28 = 2520,
    81/90 = 81 × 28/90 × 28 = 2268/2520
  3. Likewise, for the 2nd fraction, since 56 × 45 = 2520,
    80/56 = 80 × 45/56 × 45 = 3600/2520
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 2268/2520 < 3600/2520 or 81/90 < 80/56

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